Weathering and Erosion

Question 1

What is the breakdown or chemical decomposition of rock materials exposed at Earth’s surface?

Answer 1

Weathering

Question 2

What is the difference between mechanical and chemical weathering?

Answer 2

Mechanical weathering is the physical breakdown of rock into smaller pieces, while chemical weathering is the chemical decomposition of rock by changing its state.

Question 3

What is the process by which products of weathering are transported?

Answer 3

Erosion

Question 4

What type of mechanical weathering is it called when water seeps into rock cracks and then freezes?

Answer 4

Ice Wedging

Question 5

What type of mechanical weathering is it called when rocks undergo grinding and their surfaces wear away?

Answer 5

Abrasion

Question 6

What type of chemical weathering is it called when elements combine with oxygen?

Answer 6

Oxidation

Question 7

What type of chemical weathering is it called when the conversion of minerals forms carbonates (H20+CO2=H2CO3)?

Answer 7

Carbonation

Question 8

What type of chemical weathering occurs when precipitation that contains a high amount of acids falls?

Answer 8

Acid Rain

Question 9

In warm, humid climates, ____ weathering is fairly rapid.

Answer 9

Chemical

Question 10

The slowest rates of weathering occur ____.

Answer 10

• in hot, dry climates.