Why does a red apple look black under green light?

In white light, a red apple absorbs all the colors (including green) of the spectrum except red, which it reflects.

When the green light shines on a red apple, the red apple absorbs the green light.

Since there is no red light shining on the apple, there is no red light to reflect, so the apple appears black.

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Why do black lights look purple?

A black light looks dark purple, but most of the light it emits is in the ultraviolet (UV) range of the spectrum, which is invisible to the human eye.Under a black light, phosphors convert the UV radiation they receive into visible light.

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Are black lights dangerous to look at?

Although the low-power UV-A emitted by black lights is not a hazard to skin or eyes and can be viewed without protection, powerful ultraviolet sources present dangers and require personal protective equipment such as goggles and gloves.

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Why is the Rose Red and the grass green in day light?

Why is Grass Green? Chlorophyll absorbs blue light (high energy, short wavelengths) and red light (low energy, longer wavelengths) well, but mostly reflects green light, which accounts for your lawn's color.

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Why are red and green traditional Christmas colors?

For hundreds of years, red and green have been the traditional colors of Christmas.Green, for example, represents the eternal life of Jesus Christ, just as evergreen trees remain green the whole winter long.Likewise, red represents the blood shed by Jesus Christ during his crucifixion.

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Why are library lights green?

Functionally, the green color is considered soothing -- or at least, not irritating -- to the eyes.That means that while the reader has bright light projected downward toward the desk top and whatever is being read, the light is not glaring directly into the reader's eyes from the bulb.

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Why a red flag appears red in white light?

A red ball appears to be red in white light because it absorbs all the other visible frequencies present in white light and reflects the ones in the red spectrum.

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Why do baseball caps have green under the bill?

A bunch of years ago they started making the underbrim of baseball hat's green to reduce glare from the sun and improve the vision of the players.New Era makes the hat's for major league baseball, and while I'm sure the teams had input, it was ultimately New Era's call to make the bottom of the b...

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What does the black box look like?

The airplane's black box is about the size of a small suitcase and painted orange.

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Why do you see the petals of a rose as red and the leaves as green?

The colors we see depend on the frequency of the light we see.Why does the petals of a rose look red and the leaves of a rose look green in white light? Because the petals reflect the red part of the white light and the leaves reflect the green part of the white light.

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Why does Kirk wear green?

Trekkies everywhere will swear Spock wore blue, Scotty wore red and Kirk wore gold.As further proof, look at the wrap-around tunics as well as the dress uniform tunics of Kirk's – all green.They came off as their true colors because they were constructed of different materials than the standard d...

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Why does a rose appear red?

A red flower appears red because it reflects wavelengths most strongly in the red part of the spectrum (about 650-700 nm).As a consequence, the only light to reach the petals is green wavelengths, which are absorbed and not reflected by the red flower.

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Why does Santa wear a red coat?

Why does Santa wear red? The legend goes that Santa's suit is red because of a hugely successful advertising campaign for Coca-Cola that featured a big Father Christmas wearing red robes with a white trim, the soft drink's colours.But the red and white actually derive from the colours of Saint Ni...

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Why does the black box called black box?

Early flight data recorders were literally boxes painted black, hence the term "Black Boxes". It wasn't until 1965 they were required to be painted bright orange or bright yellow to make them easier to find at a crash scene. The term "Black" also often implies death and the last moments of fatal ...

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What do you wear under a black shirt?

For a more casual look you can wear it with a dark wash Jeans. If you are really stylish, you can try black on black for casual as well as formal looks based on the material of the shirt and pants. Black Shirt + Salmon Trousers.Black Shirt + Teal Trousers.Black Shirt + Beige Trousers.Black ...

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Why does Wesley Crusher wear a red uniform?

They all wear red, with the exception of those who wear a uniform corresponding to their specialty (hence Worf switching to yellow when he becomes Chief of Security).The fact that Geordi wears a red uniform in season 1, while he is a conn officer seems to validate that.

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Why does Spiderman wear red and blue?

It is because of the four color printing system used in comic books.Originally the colors were red and black with blue highlights but over the early printing life the colors were shifted to red and blue.Spiderman fights crime in New York City so most of his comics were meant to be sold in the USA.

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Do light aircraft have a black box?

So-called black boxes which record flight data and cockpit audio are mandatory in airliners and business jets, and are a vital tool for crash investigators.But they are not mandatory for light aircraft such as the US-registered Piper Malibu plane which went missing over the Channel on Monday night.

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What colors light up under a blacklight?

WHICH COLORS GLOW UNDER BLACK LIGHTS? When selecting what to wear for a black light party you want to find glow party outfits and materials that are either white or fluorescent.The brighter the neon color the greater the chance that the item will glow.Fluorescent green, pink, yellow, and orange a...

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Why does Mikey have a medal in the black parade?

In Life on the Murder Scene, Ray is told to talk to Mikey to look like he is trying to save him.Obligingly, he shouts "Mikey! In the music video for "Welcome to the Black Parade" Mikey is seen with a medal on his jacket.It is thought that this is related to him dying in the music video for "The ...

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Why is green unlucky on a boat?

The fact that it spoils easily, emitting toxic gases and that it attracts insects are all reasons why it's likely that the common banana is verboten on board.From painting a boat the colour of grass to having anything of that hue on board, even little specks on ropes, the colour green is not a sa...

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Why is bobbing for apples a tradition on Halloween?

Apple bobbing is also called bobbing for apples.It's a game that is traditionally played on Halloween.Because apples are less dense than water, they will float to the surface.Players then try to catch an apple with their teeth without using their arms.

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Why would an orange pumpkin put in a store with fluorescent lights turn green a few days later?

Because it would get moldy. I think.

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Why does Krusty look like Homer?

He was designed to look like Homer Simpson with clown makeup, with the original idea being that Bart worships a television clown who was actually his own father in disguise.Krusty made his television debut on January 15, 1989 in the Tracey Ullman Show short "The Krusty the Clown Show".

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Does a black shirt go with a black suit?

Typically, black on black registers better without a tie, but if you would like to wear one, just stick to, well, black.Stray from pairing any other colours with a black shirt and black suit, as they can read dated and messy.

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How does a worm get inside an Apple?

It is not by spontaneous generation, nor by the worms burrowing into the apples from outside.The female fruit fly has a special sharp tube that she uses to deposit her eggs inside the apple.The eggs hatch and the baby worms start eating the apple.How do worms and maggots get inside wrapped chocol...

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Does Apple have a sale on Boxing Day?

Boxing Day sales are here, which makes now a great time to grab a bargain iPhone, iPad, Mac, MacBook, Apple Watch or Apple accessory.Boxing Day itself was on 26 December, but many retailers have extended their sales to reach into the New Year, so you haven't missed out yet.

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Why is the rose red and the grass in day-light?

Because it is a mind trick. Roses are really purple and the grass is red, but the sun makes your eyes see it a different way.

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If you had a black and red dress for Halloween what could you be called?

Depends on what the dress looks like. Possibly a vampire, a witch, anything, really.

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Why does the Red Queen hate the White Queen?

The Red Queen was so paranoid, she even had her husband executed, believing he would leave her for the White Queen.She was often referred to as Bloody Big Head, possibly because all her power, which she stole, literally went to her head.Her rule was harsh for all of Underland.

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Why is a rabbit foot red?

It has been dyed with a red color

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Why is black a color of Halloween?

Black deals with the darker side with Halloween, how it is synonymous with death (Festival of death) and darkness.

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Why do banker's lamps traditionally have a green shade?

to reduce the glare from the bulb

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Why are black cats a Halloween symbol?

"cuz witch's have black kats as there pets" I happen to be a Witch, and I can tell you that witches were believed to have any cat as their familiar, not just a black one. While you can have an animal companion, it is not necessary. It comes from the superstition of a black crossing your path bein...

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Why is a black cat following me?

The black cat can be either a good or bad omen depending on circumstance.When a black cat follows you home, it is said to bring you good fortune in domestic affairs.To a person who is always hungry, it might mean plentiful food, family unity or even an incoming addition!

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Why do you kiss under a mistletoe?

According to happier versions of the legend, Baldur (sometimes spelled Baldr or Balder) was killed by an enemy's arrow made of mistletoe.His mother, the goddess Frigg, wept tears onto the arrow.Overjoyed, Frigg blessed the mistletoe plant and promised a kiss to all who passed beneath it.

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Why is Black History Month a thing?

It began as a way for remembering important people and events in the history of the African diaspora.It is celebrated in February in the United States and Canada, while in Ireland, the Netherlands, and the United Kingdom it is observed in October.

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What does a black swan tattoo symbolize?

A black swan tattoo can symbolize man different things. It could symbolize that the owner of it is peaceful and graceful. Swans are mainly known to symbolize grace.

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What does a black heart tattoo symbolize?

The Black Heart tattoo commonly illustrates grief or morning, or "dark nights of the soul".

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What does a plain red flag mean?

In politics, a red flag is predominantly a symbol of socialism, communism, Marxism, trade unions, left-wing politics, and historically of anarchism; it has been associated with left-wing politics since the French Revolution (1789–99).

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What does it mean when a cat vomits green liquid?

Bilious Vomiting Syndrome in Cats Bile is a bitter, yellow-green fluid that is created in the liver and stored in the gallbladder until food has been ingested.This reaction is usually seen in the early morning or late night just before eating, especially in cats that are fed once daily.

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What does 'green as a summer pumpkin' mean?

I think the simile 'Green as a summer pumpkin' describes the type of green in an object. Pumpkins are green when the grow in the summer. That type of green is used as a modifier specifying the certain type of green in an object.

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What does a black cat symbolize?

Black cat.Many cultures have superstitions about black cats, often ascribing either "good luck" or "bad luck" to them.Historically, black cats were symbolically associated with witchcraft and evil.In Hebrew and Babylonian folklore, cats are compared to serpents, coiled on a hearth.

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What does a black shirt go with?

With a formal black shirt, a nice gray trouser will look nice.For a more casual look you can wear it with a dark wash Jeans.If you are really stylish, you can try black on black for casual as well as formal looks based on the material of the shirt and pants.Look at David Beckham for inspiration.

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Why does Mary Poppins ask Jane if she has a handkerchief under her pillow?

It is rumored that some types of handkerchiefs can aid in falling asleep if they are put underneath your pillow. This may have been used to help travelers get some quick sleep on long journeys. Go ChaCha!

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What does a black cat mean spiritually?

From being a goddess or the carrier of evil spirits.Black cats were linked with many things.Nowadays, spiritual meaning of seeing a black cat depends on the place you are living.Many believe that if a black cat crosses your path when you are working on something, then it's bad luck, you will fail...

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What does a black poppy represent?

The black poppy is most commonly associated with the remembrance of black, African, and Caribbean contributions to the war effort.The initiative, titled “Black Poppy Rose,” was launched in 2010 and aims to make the black poppy a nation-wide symbol of remembrance.

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What does a black heart symbolizes?

The black heart is most commonly used to express sadness, if a person experiences grief like that of losing a loved one you often symbolize the black heart as to say that darkness covers everything.

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What does a black car symbolize?

It can represent sophistication (like black-tie/black dress events), power and elegance.Red: Red vehicles are said to be tied to high-energy, standing out, anxiousness and being outgoing.Red can also be seen as confident and fun.

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What does a dead black cat symbolize?

For centuries, cats have been associated with death, and how they are perceived varies between cultures.In Western cultures, black cats are associated with bad luck, disease, and witches.This not only led to the mass killing of black cats, but also the “witches” who care for them.

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What does a black teardrop tattoo symbolize?

The meaning of the black teardrop can be too things! 1. It could mean that you have talking someones lives, or in other words, You have killed a person. 2. The other meaning is that you have lost one the you really loved. This is originally a prison tattoo (circa 1920, I may be wrong) it generall...

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Why does the ghost of Christmas past look like a candle?

Scrooge turns on the ghost and demands to be shown no more.He attempts to extinguish the ghost's light with its own cap, wrestling it to the ground.However, the light that shines from the ghost cannot be put out.This ghost is shifting in appearance, seeming to be there and not be there at the sam...

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Why is a black cat a symbol of Halloween?

A Black cat is a symbol of Halloween because it is know as a sign of bad luck

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Why is a black cat consider as a symbol?

It's considered the witches cat.

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Why is a black cat considered as a Halloween symbol?

People used to think black cats were witches cats.

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Why is it a custom to bob for apples on Halloween?

Answer It's just a tradition passed on from generation to generation, but it's not always done around Halloween, it's used all year round, mostly for parties though, The custom originated among the Celts as part of their celebrations of the Samhain season, celebrations that grew into modern-day ...

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What does a karate costume look like?

it is white and you wear a belt the colors vary depending on your rank the highest is a black belt.

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What does a red scarf tied to a doorknob mean?

Hanging a scarf, tie or any noticeable item of clothing means the person/people inside the room does not want to be disturbed.

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What does a melodrama costume look like?

Melodrama can take place in any setting and therefore does not have a fixed type of costume.

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What does a mermaid tail look like?

It looks like whatever the writer, costume designer, or artist wants it to look like. Mermaids are not real so a person can create a mermaid tail to be what they want it to be. It is all make believe and in make believe anything is possible.

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What does a Polka costume look like?

like the dress they use

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What does a pumpkin tree look like?

Pumpkins grow on the ground from vines. They can become extremely large, weighing hundreds of pounds.

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Which famous building in New York lights up a red heart each St Valentine's Day?

A total of 14 lucky couples were chosen for their big day at the Empire State Building, the city's third-tallest building after One World Trade Center and 432 Park Avenue.Lights atop the Empire State Building will sparkle red and pink at night to mark the Valentine's Day occasion.

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Why are Black Cats a symbol of Halloween?

Most of Europe considers the black cat a symbol of bad luck, particularly if one walks across the path in front of a person, which is believed to be an omen of misfortune and death.

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What does it mean when a priest wears red?

Priests can wear a black cassock, although few of them do, and black clerical shirts, and bishops wear purple sashes.The official reason why Catholic cardinals wear red robes is that the color signifies the blood of Christ.One might presume from this that they wish to associate themselves with th...

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Why are black cats considered a Halloween symbol?

Well, they are all black, so they blend in with the night, with only their eyes showing. Since their eyes glow, it gives them a mysterious, other-worldly type look. And they are nocturnal, so they have lots of opportunities to show that off. Note-Some people are freaked out by this and think that...

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What does a red fox scream sound like?

The cries of the red fox can sound surprisingly similar to a human in distress.Males give a short "scream" in aggression, and females "shriek" as a mating call.

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What does a red candle in the window mean?

The burning of red candles is said to put one in touch with the power of the flesh.Red represents temporal pleasures.It symbolizes passion and love as well as scorn and courage to stand up to one's enemies.

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What does it mean to have black lights on the front of your house not at Halloween?

Either that you are having a party, or you are a fun person

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Why does the Headless Horseman carry his head under his arm?

That the headless horseman had to hold his head in his arms is because he “wanted to see what's ahead.” Or a simple geometric equation of SOH CAH TOA would help solve the angle degree.

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What does it mean when a black cat shows up?

Black Cats Bring Good Luck It is believed to be a sign of good luck and future prosperity if a black cat enters your house, if a dark and mysterious black cat meets you at your front door, or if you stroke a black cat three times.And if you dream about a black cat, it is a sure sign that good lu...

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What does a kiss under the mistletoe really mean?

In the forest, mistletoe is a bit of a scourge, a parasitic plant that latches on to trees and feeds off of them.But at Christmas, it becomes a symbol of romance.According to the tradition, it's bad luck to refuse a kiss beneath the mistletoe.After the kiss, the couple is to pluck one of the berr...

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Does wearing a black shirt make you hotter?

It's pretty common to hear that "wearing black makes you hotter." While that can be true if you are completely stationery, it can make you cooler if there is even slight wind.Black does absorb heat from the sun at a faster pace than white, but black also absorbs the heat from your body as well.

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What does a priest wear under his cassock?

Types of Eastern cassocks The inner cassock is usually worn by all clergy members under their liturgical vestments.The outer cassock should be worn by a priest celebrating a service such as Vespers where the rubrics call for him to be less than fully vested, but it is not worn by any clergy bene...

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What does a pumpkin look like when it sprouts?

Some look like a small ball on the end of a vine stem, maybe wrapped in leaves.

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What does a German national costume look like?

It depends on the region. "Lederhosen" and "Dirndl" are only popular in Bavaria.

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What does a pumpkin look like on the inside?

It has a lot of bunched of seeds and it has an orange color

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Why light a candle in your window?

The original purpose was to cast light out the window so visitors (friends or strangers) could see their way to your house and door. It is now a sign of hospitality.

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Why light a candle in the window?

So that the light will illuminate not only the house but also the window ***To welcome home the wayward child. Sort of like a lighthouse light helps steer the ships away from the shallow and dangerous shoreline. Many people, when saying goodbye to a departing loved one, will place a lighted candl...

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Why did the black cat become a familiar symbol of Halloween?

== == Cats were seen walking around at night way back in time. Since the cats were seen mostly at night, people thought that all cats were black. The Celts believed that cats were people turned into cats by evil powers from a witch. Since the witch was already a Halloween symbol, the black cat wa...

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Does Wales have a national costume and what does it look like?

The popular image of Welsh 'national' dress, is of a woman in a red cloak and tall black hat. However to describe this will be somewhat difficult so please see related link below for pictures

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Why is there a soft web inside your jack-o'-lantern with little black dots inside?

Throw it away it could be mold

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Why do you feel uncomfortable when you wear black Coloured clothes on a hot sunny day?

6 Answers.We wear light coloured clothes in summer because light colours reflect heat which helps our body to keep cool whereas dark colours absorb heat that is why it is considered to wear dark coloured clothes in winters.

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What is the name of a Halloween song with lyrics nuts and apples on the ground red leaves on the trees boys and girls in costume gay running with the breeze etc?

I don't know the name of the song but my mother learned it when she was in Middle School Do you know all of the verses? I know the first and part of the second verse only. I have searched everywhere, i.e. Internet, library, book stores, etc. for the name of this song and no one has heard of it. I...

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What does lighting a candle symbolize?

In Christianity the candle is commonly used in worship both for decoration and ambiance, and as a symbol that represents the light of God or, specifically, the light of Christ.The altar candle is often placed on the altar, usually in pairs.A votive candle or taper may be lit as an accompaniment t...

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What does light a candle mean?

"Lighting candles" in the literal sense means just that -- put a flame on some candles.For instance, the phrase "light a candle for [someone]" indicates a person's intention to say a prayer for another person.

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What does it mean when a black cat comes to your house?

It is believed to be a sign of good luck and future prosperity if a black cat enters your house, if a dark and mysterious black cat meets you at your front door, or if you stroke a black cat three times.[Tweet “If you dream about a black cat it's a sign that good luck is coming your way.”]

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Why would a Christmas light string quit working when one light bulb burns out?

With a dead bulb, the flow of electricity was interrupted, and as such no other bulbs could light. Modern light strings don't have this problem.

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What does it mean when you see a black cat at night?

The Black Cat Superstition Seeing a black cat is –depending on the country you are in at the time-- considered bordering on unlucky times, but having a black cat cross your path is considered by many to be an omen of doom; not only is it bad luck, it is VERY bad luck.

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What does it mean when a black cat runs out in front of you?

In fact, the Scots have a superstition that if a strange black cat arrives at a home, this signifies prosperity.However, in many other areas of Europe, black moggies are considered a symbol of bad luck, especially in the event of one walking across the path in front of you, which is said to be an...

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What does it mean if you see a black cat on Halloween?

The black cat is one of the most recognizable symbols of Halloween - and one of the most targeted of superstition.A black cat seen from behind foretells a bad omen.If you find a white hair on a black cat, you will have good luck.A strange black cat on your porch brings prosperity.

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What does a black ninja costume do in bully scholarship edittion?

If you go to the Girl's Dorm, the Woman Prefects won't see you. But the students will.

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Why do we put lights on a Christmas tree?

The custom goes back to when Christmas trees were decorated with candles, which symbolized Christ being the light of the world; these were brought by Christians into their homes in early modern Germany.Christmas trees displayed publicly and illuminated with electric lights became popular in the e...

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Why do people use black cats as one of halloween's themes when they're not bad luck I - have owned a black cat for about 3 years so why do they use them for Halloween?

In mythology black cats were often associated with witchcraft; it was believed that witches had a special pet called a "familar" which was usually a small animal like a cat (often but not always black) or an owl. well its sayed that sitanics sacrifice black cats on that day. so id suggest that an...

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What does a broken blood vessel in the eye look like?

The most obvious sign of a subconjunctival hemorrhage is a bright red patch on the white (sclera) of your eye.Despite its bloody appearance, a subconjunctival hemorrhage should cause no change in your vision, no discharge from your eye and no pain.

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What does the spirits light represent in A Christmas Carol?

Each ghost represents a different time of his life, and their appearance further symbolizes their purpose.A “bright clear jet of light” bursts from the head of the Ghost of Christmas Past, symbolizing torturous revelation and self-discovery.

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How long does a fluorescent light tube last?

Fluorescent Tubes In a large batch of fluorescents, say 100, when the 50th bulb burns out calculate the 3 hour periods of time and a typical F32T8 fluorescent tube lasts 30,000 hours.But, it the burn time for this same type of lamp is increased from 3 to 12 hours, the lamp will last longer, clos...

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Why you see only a portion of the area behind you when you look in the mirror?

because sometimes people are stupid and their uglyness effects the light around it and when your pee in the sewer gets into the mirror it notifys you in such a quick way it is faster than you can say pickles are sweet and pears are sour. -The big Gabe W

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Why does a witch need a broom?

So She Can Ride It Like Her Husband That Left Her (:

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Why does a pumpkin have a stem?

Every type of fruit has a stem. It all grows on plants. The plant provides the fruit with food so the fruit can grow. A pumpkin is a fruit just like an apple or an orange.

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Why does a hitchhiker need a towel?

Towels are used because of their significance in Hitchhiker's Guide to the Galaxy."A towel, it says, is about the most massively useful thing an interstellar hitchhiker can have.Partly it has great practical value.There's a frood who really knows where his towel is."

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