Chapter 3 - An Inrtoduction To Weathering And Erosion Flashcards
1
Q
Define weathering
A
Breaking down of rocks which lie exposed to the weather.
There are two types of weathering: mechanical and chemical.
2
Q
Define erosion
A
The breaking down of rock and the carrying away of rock particles.
Caused by moving water (seas and rivers), moving ice and moving air (wind).
3
Q
What is Mechanical weathering
A
Breaks up rocks into smaller pieces.
Main causes: frost, sudden temperature changes, plants and animals.
4
Q
What is Chemical Weathering?
A
Causes rock to dissolve or decompose. It’s main cause is rain.
5
Q
What is Deposition?
A
Materials that are carried away by the forces of erosion and are eventually *dropped (deposited) in other areas.
6
Q
Define denudation
A
Wearing away of rocks by weathering and erosion.
