Earth

Which of these terms means "protecting and using a resource wisely"?

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What are the broken-off pieces of glaciers that make it to the open sea called?
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What two countries lie on opposite sides of the Juan de Fuca Strait?
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What is water treated with to prevent bacteria from growing?
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Which type of eclipse occurs when the earth sits directly between the sun and the moon?
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Which layer of Earth's atmosphere is the very edge of space?
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Which of the following terms refers to the process of mountain building?
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What is the best definition of the term "rock"?
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A weather proverb says: "Clear moon," followed by what?
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