FOR 100 BRAINLZY POINTS I NEED IT NOW What marks the transition between the Precambrian Eon and Phanerozoic Eon? Question 3 options:

increased meteor impacts

a disappearance of most of the life in the fossil record

an increase in the number and diversity of life in the fossil record

the appearance of land plants in the fossil record

Explanation:

Mesozoic Era, second of Earth’s three major geologic eras of Phanerozoic time. Its name is derived from the Greek term for “middle life.” The Mesozoic Era began 252.2 million years ago, following the conclusion of the Paleozoic Era, and ended 66 million years ago, at the dawn of the Cenozoic Era. (See the geologic time scale.) The major divisions of the Mesozoic Era are, from oldest to youngest, the Triassic Period, the Jurassic Period, and the Cretaceous Period. The ancestors of major plant and animal groups that exist today first appeared during the Mesozoic, but this era is best known as the time of the dinosaurs.

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