Question

topic: weathering, erosion and deposition......quiz number 253126

1. when the weather is cold, chemical weathering is more efficient

a) true
b) false
for questions 2 - 4, match the chemical term with the substance involved in chemical weathering
2)______oxidation
a) carbon dioxide
3)______carbonation
b) water
4)______hydrolysis
c) oxygen

1. choose the item that is true about the production of rust

a) carbonation, oxygen and acid
b) polysaccharides, water, hydrolysis
c) salt, carbon dioxide and acid rain
d) oxidation, iron and oxygen

1. defined as a natural process that breaks down rock to form sediment

a) weathering
b) stratification
c) meterology
d) deposition
7)______water in cracks of rock with freeze
a) chemical weathering
and split crack wider
b) plant action
8)______animals digging around, rocks split
c) ice/frost wedging
and sediment moved
d) biological weathering
9)______plants growing in cracked rocks
e) animal burrowing
breaks rock apart
10)______actions by living things weather
rocks
11)______atoms and compounds are
rearranged to break down rock

1. water is most often involved in chemical weathering

a) true
b) false

1. the movement of soil/sediment from one place to another is______

a) deposition
b) mechanical
c) erosion

Explanation:

• Question 1: Chemical weathering is more efficient in warm and wet conditions, not cold.
• Question 2: Oxidation involves oxygen.
• Question 3: Carbonation involves carbon dioxide.
• Question 4: Hydrolysis involves water.
• Question 5: Rust is produced by oxidation of iron with oxygen.
• Question 6: Weathering breaks down rock to form sediment.
• Question 7: Ice/frost wedging is water in cracks freezing and splitting.
• Question 8: Animal burrowing is animals digging.
• Question 9: Plant action is plants growing in rocks.
• Question 10: Biological weathering is actions by living things.
• Question 11: Chemical weathering rearranges atoms/compounds.
• Question 12: Water is often in chemical weathering (e.g., hydrolysis).
• Question 13: Erosion is movement of soil/sediment.

Answer:

1. b) False
2. c) oxygen
3. a) carbon dioxide
4. b) water
5. d) oxidation, iron and oxygen
6. a) weathering
7. c) ice/frost wedging
8. e) animal burrowing
9. b) plant action
10. d) biological weathering
11. a) chemical weathering
12. a) True
13. c) erosion