sub aerial processes

Question 1

What is weathering?

Answer 1

chemical
biological
mechanical break down of rocks

Question 2

What is mass movement?

Answer 2

landslides, slumps, rock fall

movement of material downslope by gravity

Question 3

What is surface run off?

Answer 3

water during heavy rain flows down cliff face causing erosion of it

Question 4

What is chemical weathering?

Answer 4

rocks broken down because of there chemical composition being changed
carbon dioxide dissolves in rain making it weak carbonic acid

Question 5

What is biological weathering?

Answer 5

rocks broken down by living things- algae

activity of animals near coast- scrap acid on rocks

Question 6

What is mechanical weathering?

Answer 6

rocks broken down without there chem composition being changed
salt weathering- sea water gets into cracks
salt crystals form
over time or widening cracks makes rocks break apart

Question 7

What are slides?

Answer 7

material moves down slope in a straight line

Question 8

What are rockfalls?

Answer 8

material breaks apart because of erosion and weathering- rolls down slope

Question 9

What are slumps?

Answer 9

material moves down slope with rotation
slower
heavy rain and erosion= rotational movement of the cliff