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Marine plants were abundant during which period?

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in Biology – Class 12 by (271k points)
Marine plants were abundant during which period?

(a) Cambrian

(b) Ordovician

(c) Silurian

(d) Permian

This question was addressed to me in final exam.

This key question is from A Brief Account of Evolution of Plants in section Evolution of Biology – Class 12

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The correct choice is (b) Ordovician

For explanation I would say: Marine plants were abundant during the Ordovician period. Plants also reached fresh water during this period. It occurred about 6 to 7 crore years ago during the Palaeozoic era.

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