According to the passage, what happened about 400 million years ago? A. Many terrestrial life-forms died out. B. New life-forms on land developed at a rapid rate. C. The megafossils were d

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According to the passage, what happened about 400 million years ago?

Many terrestrial life-forms died out.

New life-forms on land developed at a rapid rate.

The megafossils were destroyed by floods.

Life began to develop in the ancient seas.

Giải thích

Lời giải:

Đáp án: B

3. Thông tin: Moreover, the megafossilssuggest that terrestrial life appeared and diversified explosively near the boundarybetween the Silurian and the Devonian periods, a little more than 400 million years ago.