Soil, Rocks, Weathering, and Erosion
  • 1. Weathering is
A) the movement of rock particles by wind, water, ice, and gravity
B) the process that breaks rock and other substances down.
C) a process that is only mechanical..
D) the only process that breaks down rocks.
  • 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 only way to break down rocks.
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) Mechanical
D) Deep Freeze
  • 4. Grinding away of rock particles by wind or water is called
A) sand blasting
B) erosion
C) scrapes and bruises
D) abrasion
  • 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) Repeated freezing and thawing
B) erosion
C) Acid Rain
D) sand storms
  • 8. What are the four soil horizons?
A) O, A, B, C
B) O, A, E, D
C) A, E, I, O
D) A, B, C, D
  • 9. Decaying and decomposing organic material is known as
A) humus
B) mustard
C) humans
D) litter layer
  • 10. The Bedrock is which layer?
A) O
B) A
C) B
D) C
  • 11. Which is the MOST important layer in the soil horizons?
A) Sub Soil
B) Bedrock
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) humus is present in it
B) there is a huge amount of 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) bad luck
C) drought and poor soil managment
D) there was too much water present
  • 15. Soil is never lost to the seas
A) False
B) True
  • 16. Conservation plowing
A) keeps the dead weeds and stalks from the previous year to return nutrients to the soil
B) is a poor way to conserve soil
C) is done on the contours of the landscape
D) tears the ground up and creates erosion problems
  • 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) Water
B) Humus
C) Air
D) Minerals
  • 19. What are the two things that effect the rate of weathering?
A) Rain and Ice
B) Time and Date
C) Type of rock and Climate
D) Size of Rock and time of the year
  • 20. Soil is ONLY formed through rocks
A) True
B) False
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