Which is one piece of information that fossils in samples from Earth’s crust reveal about Earth’s history?

Fossils preserved in rock layers can show which organisms lived during different periods and the environments they lived in. Changes in the kinds of organisms and the sediments around them can reveal changes in climate over Earth’s history. Fossils do not reveal the composition of Earth’s core, and they usually do not tell exactly how old an individual organism was when it died.

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