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Why are pollen grains useful when studying the climate history of a region?

User Dereckson
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They can be preserved within the fossils of organisms that carry them. They provide clues about the types of plants that grew in a region at a particular time.
User Pcunite
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Answer: D on edge

Step-by-step explanation:

They provide clues about the types of plants that grew in a region at a particular time.

User Tanuja
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