2. Weathering

Question 1

3 types of weathering

Answer 1

1. Mechanical
2. Chemical
3. Biological

Question 2

Difference between weathering and erosion

Answer 2

• weathering breaks down rocks into fragments/ in situ
• erosion moves fragments of rocks

Question 3

Important factors in determining rates and types of weathering in arid and semi arid environments

Answer 3

• Little water
• High rates of evaporation
• Rock type
• Lack of vegetation
• Extreme temperatures

Question 4

Biological

Answer 4

The breakdown of rocks by living organisms

Question 5

Chemical

Answer 5

The chemical alteration or decomposition of rocks

Question 6

Physical

Answer 6

The mechanical breakdown of rocks

Question 7

Chemical weathering

Answer 7

• Oxidation
• Hydration
• Hydrolysis
• Carbonation
• Solution
• Biological weathering