Science

A:

Nitrogen in the form of nitrites and nitrates can cause serious health risks in humans, ranging from cancer and thyroid problems to respiratory issues and vitamin deficiencies. However, nitrogen molecules in a stable condition are essential to life. They play an important role in the genetic code and comprise up to 78 percent of Earth’s atmosphere.

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    • What color is the Milky Way?

      Q: What color is the Milky Way?

      A: In 2012, a team of astronomers from the University of Pittsburgh announced that the Milky Way galaxy is aptly named thanks to its pure, milky white color, which the scientists described as resembling a fresh snowfall. The fact that Earth is located within the Milky Way galaxy has made the process of measuring the galaxy's color difficult; obstructions from things like dust and gas within the galaxy had previously made it hard for scientists to get a broad enough view of the Milky Way in order to determine its color.
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    • What is the primary purpose of an astronomical telescope?

      Q: What is the primary purpose of an astronomical telescope?

      A: The astronomical telescope is a central apparatus used to study distant planets, stars and moons from the Earth. Astronomer Galileo Galilei famously used the earliest telescopes in 1610 to prove the heliocentric solar system theory put forth by Nicolaus Copernicus in the early 16th century.
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    • Why is Nicolaus Copernicus famous?

      Q: Why is Nicolaus Copernicus famous?

      A: Nicolaus Copernicus is best known for being the father of what would later become humans' modern understanding of the solar system. Prior to this determination, scientists believed that all the objects in the solar system orbited around the Earth itself.
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    • What causes a lunar eclipse?

      Q: What causes a lunar eclipse?

      A: Lunar eclipses are caused when the moon travels through the Earth’s shadow. Complete lunar eclipses are rare, but partial lunar eclipses may occur up to four times per year.
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    • What happens to stars as they age?

      Q: What happens to stars as they age?

      A: Stars on the main sequence that are the same size as the Sun begin as yellow stars and turn into red giants as their hydrogen fuel runs out. Other stars shrink or explode, depending on their size.
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    • What does seeing a shooting star mean?

      Q: What does seeing a shooting star mean?

      A: Seeing a shooting star means that a meteor is plummeting toward earth. The glowing appearance is caused when the meteor's surface catches on fire upon entering the Earth's atmosphere. A shooting star, therefore, is not actually a star.
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    • What is a word equation for photosynthesis?

      Q: What is a word equation for photosynthesis?

      A: A simple word equation that can be used to describe the process of photosynthesis is carbon dioxide + water —> glucose + oxygen + water. A balanced chemical equation for the process can be written as 6CO2 + 6H2O —> C6H12O6 + 6O2. Overall, photosynthesis uses light energy to convert carbon dioxide into a carbohydrate.
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    • Why is the brain important in the human body?

      Q: Why is the brain important in the human body?

      A: The brain is important in the human body because it allows a person to think, feel and store memories, and it controls and coordinates the body’s actions and reactions, states the Atlanta Brain and Spine Care. The brain is an incredibly complex organ composed of many parts, including the cranium, the cerebrum, the brain stem and the cerebellum.
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    • Is it possible to have twins from two different dads?

      Q: Is it possible to have twins from two different dads?

      A: It might sound like a wayward twist from a movie, but it is possible for fraternal (not identical) twins to come from two different dads. The circumstances must be very specific, but some experts estimate that 1-2 percent of fraternal twins have different fathers.
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    • What are characteristics of gymnosperms?

      Q: What are characteristics of gymnosperms?

      A: Gymnosperms lack the bright, showy flowers and fruit-covered seeds of angiosperms. Gymnosperm literally means “naked seed,” and they are more primitive plants than angiosperms are. Gymnosperms evolved about 300 million years ago.
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    • How does a great white shark protect itself?

      Q: How does a great white shark protect itself?

      A: Great white sharks have many tools with which to protect themselves, such as powerful jaws, unique scales and efficient eyes. The shark has, in fact, evolved to be both a fierce predator and a defensible fortress.
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    • What is behavioral adaptation?

      Q: What is behavioral adaptation?

      A: Behavioral adaptation is the process by which an organism or a species changes its pattern of action to better suit its environment. It is contrasted with structural adaptation, which is the appearance of physical features that confer an advantage upon a species.
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    • What colors can someone mix to make sage green?

      Q: What colors can someone mix to make sage green?

      A: Sage green can be made by mixing the colors next to green on the color wheel, which are blue and yellow. However, sage green is a particular green and to find the right color balance may be difficult.
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    • What colors make navy blue?

      Q: What colors make navy blue?

      A: To make navy blue, the colors black and blue are mixed. Blue is a primary color, and navy blue is a dark version of it, so adding black to basic blue creates the navy shade.
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    • What color do you get when mixing yellow and purple?

      Q: What color do you get when mixing yellow and purple?

      A: Yellow and purple combine to make a neutral shade of gray. Yellow and purple are complementary colors, and complementary colors combine to form neutral shades of gray or brown, depending on the amounts of each color used.
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    • How do you make the color orange?

      Q: How do you make the color orange?

      A: To make the color orange, you will need paints in red, yellow and white as well as a small dish and paintbrush for mixing. Mix the two primary colors and then add white to achieve the desired shade. The process should take only a few minutes, depending on how much of the color orange is being produced.
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    • What colors go well with maroon?

      Q: What colors go well with maroon?

      A: Since maroon is opposite yellowish green on the color wheel, those colors go well together. However, there are other ways to use the color wheel to determine matching colors. For instance, an equilateral triangle connects colors that complement each other, so maroon harmonizes with blue-green or orange-yellow.
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    • What color does yellow and purple make?

      Q: What color does yellow and purple make?

      A: Mixing yellow and purple together results in brown and warm gray, depending on the amount of each color used. Mixing two complementary colors together, such as red and green, blue and orange or yellow and purple, will produce a different shade of brown.
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