Why Are Stars Different Colors?
Why Are Stars Different Colors? Stars are many different colors because some of them are hotter than others. Stars are either red, orange, yellow, white or...
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What Is Global Warming?
Global Warming is the increase of Earth’s average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil...
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What Are the Greenhouse Gases?
What Are the Greenhouse Gases? The most significant greenhouse gas is actually water vapor, not something produced directly by humankind in significant amounts....
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What Causes Weather?
What Causes Weather? Most weather phenomena occur in the troposphere, just below the stratosphere. Weather refers to day-to-day temperature and precipitation activity,...
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What Is Carbon-14 Dating?
What Is Carbon-14 Dating? Carbon-14 (a carbon atom with six protons and eight neutrons) is an isotope of normal carbon, which is also known as carbon-12 (a carbon atom...
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