I believe it’s Precambrian.
Volcanos spew, ava volcano ash and gases into the environment. this is an effect on the local energy
<span>The steps commonly used by scientists in gathering information to test a hypothesis and solve a problem is called c) scientific method
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Answer:
You'd want to examine homologous structures in fossil remains. This can give a geologic time scale of evolution within certain fossil groups. ... Fossil evidence can give a general timeline for the common ancestor or origin or homologous structures as well as how they have changed since then.
Explanation: