Why Does India Have Monsoons?
The seasonal winds of southwest Asia known as monsoons are associated particularly with India because of the tremendous effects they have on the lives of the...
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When Does Coal Become a Precious Stone?
Coal is basically a compound consisting largely of carbon. When a piece of carbon deep underground is subjected to great heat and pressure, it may gradually be...
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Where Does Coal Come From?
Coal comes from the remains of trees, shrubs, and plants that grew millions of years ago, in tropical wetlands, such as those of the late Carboniferous period (the...
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When Does a Glacier Move?
When Does a Glacier Move? A glacier moves because the huge pressure of the ice and snow lowers the freezing point of its lower layers, causing them to melt....
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What Is a Depression?
What Is a Depression? A depression is an area of low pressure, usually bringing unsettled weather. A deepening depression has a lowering of pressure at its center. The...
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