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Earth Science Topic 9: Physical Weathering Flashcards | StudBud

Explore/Earth Science Topic 9: Physical Weathering

Earth Science Topic 9: Physical Weathering

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Topic 9: Physical Weathering

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Questions 5

Answers

1
What are the three components or forces of physical weathering?
precipitation, pressure unloading, plant action
frost action, pressure unloading, plant action
evaporation, precipitation, condensation
frost action, pressure unloading, glaciation
2
Physical weathering is best defined as:
any process that causes a rock to break into smaller pieces
a chemical reaction between minerals
altering its chemical composition
changing of its chemical properties
3
Which is the best example of physical weathering?
The transportation of sediment in a stream
The reaction of limestone with acid rainwater
Cracking of rock caused by the freezing and thawing of water
The formation of a sandbar along the side of a stream
4
Which type of climate has the greatest amount of rock weathering caused by frost action?
A dry climate in which temperatures remain below freezing
A wet climate in which temperatures remain below freezing
Humid climate where temps alternate above to below freezing
Arid climate where temps alternate below to above freezing
5
Frost action works as an agent of physical weathering primarily by:
Making the rock smoother
Alternate expansion/contraction of water inside the rock
Freezing the rock making it brittle
Chemically dissolving the rock