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  4. Pollen grains are well preserved as fossils because of the presence of :-

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Q. Pollen grains are well preserved as fossils because of the presence of :-

NTA AbhyasNTA Abhyas 2020

Solution:

Sporopollenin is a chemically inert biological polymers. It is found in the outer exine wall of the pollen grains. Being chemically stable, it keeps the pollen grains well-preserved in soils and sediments.