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2. The following is an example of which type of weathering? Water freezes in the cracks of rocks over and over, which causes the rocks to break apart.
1 point
chemical weather
mechanical weathering
biological weathering
organic weathering
3. _____ is a type of chemical weathering in which oxygen in water causes the iron in rocks to rust and soften the rocks.
1 point
Hydrolysis
Carbonation
Oxidation
Lichens
4. Temperature changes can weather rocks. Put the following sequence in a possible correct order. (1) rock expands(2) rock cools down(3) rock layers crack(4) rock heats up(5) rock contracts
1 point
(5) (3) (1) (2) (4)
(1) (2) (4) (5) (3)
(3) (2) (1) (4) (5)
(4) (1) (3) (2) (5)
5. Freezing water can weather rocks in winter. Put the following sequence in the correct order. (1) water expands(2) water freezes(3) water runs into cracks(4) rock is cracked further
1 point
(2) (1) (4) (3)
(1) (2) (4) (3)
(3) (2) (1) (4)
(3) (1) (2) (4)
6. Which is TRUE about glaciers?
1 point
they cause little erosion
they consist of a pure frozen water
the ice is not hard enough to leave deep scars in rocks
they crush rocks and transport the fragments
7. Which of the following is not a factor in the rate of weathering?
1 point
Climate
Presence or absence of soil
Properties of the parent rock
Atmospheric pressure
8. Which of the following is not a form of physical weathering?
1 point
Frost wedging
Cracks widening by plant root growth
Exfoliation
Dissolving of calcite by carbonic acid
9. Physical weathering will be most intense in which climate?
1 point
Warm and moist, where daily temperature variations are small
Cold and moist, where daily temperature variations are large and span the freezing point
Warm and dry, where daily temperature variations are small
Cold and dry, where daily temperature variations are large and span the freezing point
10. Which type of weathering creates clay minerals?
1 point
Dissolution
Frost wedging
Hydrolysis
Oxidation
11. Which type of weathering works most effectively on limestone?
1 point
Dissolution
Frost wedging
Hydrolysis
Oxidation
12. Chemical weathering always results in the creation of what kind of minerals?
1 point
Felsic minerals
Mafic minerals
High-temperature minerals
Low-temperature minerals
13. In which climate is chemical weathering likely to occur most rapidly?
1 point
Desert
Polar region
Tropical forest
14. The process of weathering is best described as the __________.
1 point
disintegration and decomposition of a rock on the surface of Earth
transfer of rock material by gravity
alteration of feldspar into clay minerals
chemical breakdown of a rock
15. Weathering is __________ of rocks at the surface of the Earth.
1 point
only the physical breakdown (disintegration)
only the chemical alteration (decomposition)
both the physical breakdown (disintegration) and chemical alteration (decomposition)
both the physical alteration (decomposition) and chemical breakdown (disintegration)
16. Why does rock “weather”?
1 point
Weathering is the response of rocks to changed environment from which it formed.
Rocks spontaneously change into sediment and soil after erosion and exfoliation.
Rocks expand upon heating, and root wedging deep below the surface promotes weathering.
All of the above
17. How is weathering different from erosion?
1 point
Weathering produces erosion and erosion produces sediment.
Weathering produces sediment, whereas erosion transfers sediment from place to place.
Weathering produces soil, whereas erosion transmits sediment to places where it weathers.
Weathering transfers sediment from place to place, whereas erosion produces sediment.
18. Why are “weathering” and “erosion” connected processes?
1 point
a. No erosion without weathering into sediment
b. No weathering without "exposed" surface from erosion of sediment
both a. and b.
neither a. nor b.
19. Which of these is required to “weather” a rock?
1 point
exposure to rain
exposure to wind
exposure to Earth surface temperature changes
all of these
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