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What happened around 800 million years after Earth formed to allow rocks to form? O A. Life began to appear. O B. The sun dimmed considerably. D C. Earth cooled sufficiently. D. The ozone layer formed.
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What happened around 800 million years after Earth formed to allow rocks to

form?
O
A. Life began to appear.
O
B. The sun dimmed considerably.
D
C. Earth cooled sufficiently.
D. The ozone layer formed.​

User Addsy
by
4.8k points

1 Answer

1 vote

Answer:

C. Earth cooled sufficiently

Step-by-step explanation:

User Jaychapani
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