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.​

Respuesta :

NessaC

Answer:

C. Earth cooled sufficiently

Explanation:

Answer:

C. Earth cooled suficently

Explanation:

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