Earth
What substance can layers of decayed plants form over time?
More Questions from Earth
What are minerals found in high quantities and worth mining called?
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What organic material is formed from decaying organisms that mix with rocks?
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What polluting material can choke an animal by getting caught around its neck?
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What event is caused by radiation hitting the Earth's atmosphere?
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What are the broken-off pieces of glaciers that make it to the open sea called?
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