Question

Which era makes up the vast majority of Earth's history?
O A. Mesozoic
O B. Palezoic
O C. Cenozoic
O D. Precambrian

Answer 1

Answer:

Precambrian era is the longest era in the Earth's history.  It began 4600 million years ago and ended about 540 million years ago.

Explanation:

Answer 2

Answer:

precambrian era is the correct answer.