Geomorphic Processes At The Coast

Question 1

Weathering definition

Answer 1

Weathering uses energy to produce physically or chemically altered materials from surface or near surface rock.

Question 2

Insitu definition

Answer 2

Without movement of rocks.

Question 3

What are the 3 types of weathering

Answer 3

Physical/mechanical
Chemical
Biological

Question 4

Tree roots

Answer 4

Tree roots grow into cracks or joints in rocks and exert outward pressure. This operates in a very similar way and with similar effects to freeze-thaw. When trees topple, their roots can also exert leverage on rock and soil.

Question 5

Freeze-thaw

Answer 5

Water enters cracks/joints and expands by expands by nearly 10% when it freezes. In confined spaces this exerts pressure on the rock causing it to split even in very resistant rocks.