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photoshop1234 [79]
3 years ago
10

Humans evolved approximately 200,000 years ago. For what percent of geologic time have humans been present on Earth

Geography
1 answer:
Mademuasel [1]3 years ago
8 0

Answer:

Our best guesses are that life began somewhere between 3.5 Billion and 3.8 Billion years ago

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What factors cause variations in climate and vegetation in the United States
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Fast

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For a river that deposits small particles where it flows into a sea, the current is likely to be fast.

A fast current is only able to winnow through the sediment and removes the fines.

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Your Aunt Sally knows that you're taking an environmental science course and says she has a question for you, "What does it mean
ValentinkaMS [17]

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Principle of Conservation of Matter -

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