The microscopic pollen grains of the past are obtained as fossils. Mention the characteristics of pollen grains that make it happen.
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hey mate here is your answer..↷↷
✔ the pollen grains contain sporopollenin...
✔sporopollenin is biological hardest substance ...
✔ it prevent the pollen grains from outer environment...
✌✌
✔ the pollen grains contain sporopollenin...
✔sporopollenin is biological hardest substance ...
✔ it prevent the pollen grains from outer environment...
✌✌
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this is your answer........
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