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