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valentina_108 [34]
3 years ago
11

How many years did it take to double between .5 billion and 1 billion?

Biology
1 answer:
finlep [7]3 years ago
8 0

Answer:

2

Explanation:

you take 1 billion and divide it by 0.5 and to check your work you would take your answer and multiply it by 0.5

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2.tidally

3.spin

4.Kuiper

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this is for penn foster

4 0
3 years ago
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Living cells cannot use heat to provide the activation energy for biochemical reactions because ________. Which choice(s) comple
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Considering the following;

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IV. When a critical temperature is reached, proteins no longer function

Answer;

I and IV

Explanation;

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