How might scientists be able to use fossils to infer that the climate of the central united states was a lush subtropical forest millions of years ago?

Fossils contain chemicals that indicate climate factors. A scientist can measure these chemicals to infer what the climate of the place where they were found was when they were alive. It is possible if the right plant fossils were found that one could infer that the climate of the US was a subtropical forest millions of years ago.

the french revolution was when many people were persecuted for disagreeing or making separate government

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