Soil, Rocks, Weathering, and Erosion
  • 1. Weathering is
A) a process that is only mechanical..
B) the movement of rock particles by wind, water, ice, and gravity
C) the process that breaks rock and other substances down.
D) the only process that breaks down rocks.
  • 2. Erosion is
A) the process that breaks down rock and other substances at the Earth's surface.
B) the only way to break down rocks.
C) a process that only involves water.
D) the movement of rock particles by wind, water, ice, and gravity.
  • 3. Repeated Freezing and thawing is an example of what type of Weathering?
A) Erosion
B) Mechanical
C) Chemical
D) Deep Freeze
  • 4. Grinding away of rock particles by wind or water is called
A) abrasion
B) erosion
C) scrapes and bruises
D) sand blasting
  • 5. Mechanical weathering changes the minerals make up the rock
A) True
B) False
  • 6. Chemical weathering changes the mineral make up of the rock
A) False
B) True
  • 7. An example of Chemical weathering is
A) Acid Rain
B) Repeated freezing and thawing
C) sand storms
D) erosion
  • 8. What are the four soil horizons?
A) A, B, C, D
B) O, A, B, C
C) O, A, E, D
D) A, E, I, O
  • 9. Decaying and decomposing organic material is known as
A) litter layer
B) humans
C) humus
D) mustard
  • 10. The Bedrock is which layer?
A) B
B) A
C) C
D) O
  • 11. Which is the MOST important layer in the soil horizons?
A) Bedrock
B) Litter layer
C) Top Soil
D) Sub Soil
  • 12. There are only two types of soil in the US
A) False
B) True
  • 13. Fertile soil is a valuable resource because
A) humus is present in it
B) it is constantly being renewed
C) there is a huge amount of it
D) there is very limited amount of it
  • 14. The dust bowl happened because of
A) soil conservation
B) there was too much water present
C) drought and poor soil managment
D) bad luck
  • 15. Soil is never lost to the seas
A) False
B) True
  • 16. Conservation plowing
A) is a poor way to conserve soil
B) tears the ground up and creates erosion problems
C) is done on the contours of the landscape
D) keeps the dead weeds and stalks from the previous year to return nutrients to the soil
  • 17. What happens when soil becomes nutrient depleted?
A) The soil is too wet
B) It loses fertility
C) It becomes the best soil for planting
D) It is packed with minerals
  • 18. What is the main ingredient for soil?
A) Air
B) Humus
C) Minerals
D) Water
  • 19. What are the two things that effect the rate of weathering?
A) Size of Rock and time of the year
B) Time and Date
C) Rain and Ice
D) Type of rock and Climate
  • 20. Soil is ONLY formed through rocks
A) True
B) False
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