Why are no rocks found that date from the first 800 million years of Earth's
existence?
A. All the rocks from that time period have been destroyed by plate
movements.
B. They have all been buried too deeply under newer rocks.
O C. Earth was too hot to have solid rocks at that time.
D. They were all destroyed by a comet impact.

The answer is C.

Explanation:

Earth was too hot so mostly all the rocks melted.

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explanation:

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the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.