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