Multiple choice

In the Geological time line which era comes first?

  1. Cenozoic Era

  2. Mesozoic Era

  3. Paleozoic Era

  4. Pre-Cambrian Era

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Pre-Cambrian Era (also called Precambrian) is the earliest division of geological time, spanning from Earth's formation about 4.6 billion years ago to about 541 million years ago. The other three eras listed (Paleozoic, Mesozoic, and Cenozoic) all came after it.