Nov. 8 test review question page 2 page 92 question 1-12

Question 1

What are two important events that happened in the precambrian era?

Answer 1

Many cycles of mountain building and erosion took place in this era. There are the remains of material deposited by algae dating back to the precambrian era

Question 2

What are two important events that happened in the Paleozoic era?

Answer 2

All the continents collided to form the supercontinent pangea There were at least 5 mass extinctions in the past 600 million years

Question 3

What are two important events that happened in the Mesozoic era?

Answer 3

The rocky mountains started to form. There was a mass extinction by the end of the era, more than half of the animals and plants died. Including the dinosaurs.

Question 4

What are two important events that happened in the Cenezoic era?

Answer 4

There was an ice age. which ended about 6000 years ago. Mammals became the dominant species after the ice age. (This is SOOOO unreligious…like bruh.)