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Mars2501 [29]
3 years ago
14

What four things are necessary for evolution to take place?

Biology
1 answer:
Alenkasestr [34]3 years ago
6 0
Food plus Brains and other stuff google it 
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There needs to be enough sea urchins for otters to come and there needs to be enough otters to eat the urchins.

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Oldest to youngest

Sandstone with trilobite → limestone with crinoid → shale with ammonite → conglomerate

According to the rule of superposition, rock strata (layers) that are the furthest from the ground's surface are the oldest (formed earliest) and those that are the nearest to it are the youngest (formed most recently).

<h3>What is a Rock ?</h3>

A rock is a dense mass of mineral grains that have grown or been cemented together over time. There are big rocks and little rocks. Pebbles are little rocks. One or more minerals can be found in every rock.

  • According to how they were formed, rocks are categorised by geologists (those who study rocks and minerals).

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