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Soil, Rocks, Weathering, and Erosion
  • 1. Weathering is
A) a process that is only mechanical..
B) the only process that breaks down rocks.
C) the process that breaks rock and other substances down.
D) the movement of rock particles by wind, water, ice, and gravity
  • 2. Erosion is
A) a process that only involves water.
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) the only way to break down rocks.
  • 3. Repeated Freezing and thawing is an example of what type of Weathering?
A) Chemical
B) Deep Freeze
C) Mechanical
D) Erosion
  • 4. Grinding away of rock particles by wind or water is called
A) abrasion
B) erosion
C) sand blasting
D) scrapes and bruises
  • 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) True
B) False
  • 7. An example of Chemical weathering is
A) Acid Rain
B) sand storms
C) Repeated freezing and thawing
D) erosion
  • 8. What are the four soil horizons?
A) O, A, B, C
B) A, B, C, D
C) A, E, I, O
D) O, A, E, D
  • 9. Decaying and decomposing organic material is known as
A) litter layer
B) humans
C) mustard
D) humus
  • 10. The Bedrock is which layer?
A) C
B) O
C) B
D) A
  • 11. Which is the MOST important layer in the soil horizons?
A) Top Soil
B) Sub Soil
C) Litter layer
D) Bedrock
  • 12. There are only two types of soil in the US
A) False
B) True
  • 13. Fertile soil is a valuable resource because
A) there is a huge amount of it
B) humus is present in it
C) there is very limited amount of it
D) it is constantly being renewed
  • 14. The dust bowl happened because of
A) soil conservation
B) there was too much water present
C) bad luck
D) drought and poor soil managment
  • 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) tears the ground up and creates erosion problems
C) is a poor way to conserve soil
D) is done on the contours of the landscape
  • 17. What happens when soil becomes nutrient depleted?
A) The soil is too wet
B) It becomes the best soil for planting
C) It loses fertility
D) It is packed with minerals
  • 18. What is the main ingredient for soil?
A) Humus
B) Minerals
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) Rain and Ice
C) Time and Date
D) Type of rock and Climate
  • 20. Soil is ONLY formed through rocks
A) True
B) False
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