Types of Mechanical Weathering

Question 1

In ___, rock breaks apart in layers that are parallel to the Earth’s surface.

Answer 1

Exfoliation

Question 2

Gravity causes ___ when the rocks tumble down a mountainside and hit another rock, and break into the fragment

Answer 2

Abrasion

Question 3

Rocks toppling off cliffs or steep slopes due to the tug of ___ or swept up in landslides split into smaller pieces.

Answer 3

Gravity

Question 4

Cracking from plant roots and exposure by ___ When a mass of rock is exposed by weathering and removal of the overlying rock

Answer 4

Burrowing Animals