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