Pollen grains found in sediment layers in lakes are key in studying ancient climate change. The unique size and shape of pollen grains aid in identifying plant types.
Scientists find pollen grains to study ancient climate change primarily in sediment layers that accumulate in areas like lakes over time. The attribute of pollen grains that helps scientists identify the types of plants is their unique size and shape, which varies among plant species and remains preserved in sedimentary records.
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