Earth

Which of these words refers to harmful things that are added to the water, air or land?

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What weather term is Japanese for "harbor" and "wave"?
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What element is a diamond composed of?
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What type of cloud is fog?
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Which season begins with the vernal equinox?
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What sort of storm is shaped like a funnel and is very destructive when it touches down?
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The "Northern Lights" are also known as what?
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What is unusual about pumice?
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What is the science of the origin, history, and structure of the Earth called?
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