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Lesechka [4]
3 years ago
9

How is modern Earth different from Earth over four billion years ago?

Biology
2 answers:
Gelneren [198K]3 years ago
3 0

Answer:

D, over the past Billions of years, our atmosphere has formed to protect life.

Sergeeva-Olga [200]3 years ago
3 0

Answer:

B. Little to no oxygen

Explanation:

The atmosphere on the primitive Earth over four billion years ago was reducing. It did not have oxygen or oxygen was present in very little amount. The present-day atmosphere of today's Earth is rich in oxygen.  

Evolution of oxygen-evolving autotrophic cyanobacteria led to the accumulation of oxygen in the atmosphere of primitive Earth.  

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they take the things that make the food and put all types of things in them to make then tastes better like apples they modify those to make them bigger and juicier.

3 0
3 years ago
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Answer:

Due to inability to survive in aerobic condition.

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g100num [7]
True.
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4 years ago
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Scientists say the planet Venus has a "runaway greenhouse effect." What condition would you expect on Venus as the result of a r
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