Question

4

Which is true for the beginning of the Cenozoic era? *
(1 Point)
Dinosaurs had killed all mammals
Mammals first appeared
Dinosaurs had become extinct
O Mammals and dinosaurs lived together

Answer 1

Answer is Mammals first appeared Dinosaurs had become extinct.This statement is true.

Answer 2

Mammals first appeared

Step-by-step explanation:

The dinosaurs became extinct one million years after the Cenozoic era started. The mammals first appeared as the modern culture first appeared in that era.