EXOGENIC | Physical Weathering (Definition-Word)

Question 1

Jointing

Answer 1

Increase in pressure causing rocks to break into pieces along its joint (naturally formed cracks).

Question 2

frost wedging

Answer 2

Water getting trapped in joints of rocks, freezes, expands, then causes the rock to be forced open and split.

Question 3

root wedging

Answer 3

tree roots growing in joints can cause it to split open.

Question 4

thermal expansion

Answer 4

rocks exposed to intense heat, causing its outer layer to crack or break off

Question 5

salt wedging

Answer 5

dissolved salt in water crystalizes and enlarges open spaces in rocks

Question 6

animal attack

Answer 6

burrowing animals can force joints open, breaking it into fragments