Look up Dawrin's theory of evolution. Basically, fossil records show how life forms change over time through evolution.
Answer: in order for a scientific investigation to be valid A hypothesis must be tested throughout a Scientific investigation that can gather evidence and support it.
Explanation: in any scientific investigation you have to have a testable hypothesis, without your hypothesis it’s not really a scientific investigation.
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Answer: burning processes, such as backyard burning and commercial or municipal waste incineration.
the use of fuels, such as wood, coal, or oil.
natural phenomena, such as volcanic activity and forest fires.
industrial processes, such as chlorine bleaching of paper pulp and smelting.
Explanation:
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Do a cross graph with B and W