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Earth science ch. 7 Flashcards | StudBud
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Earth science ch. 7
Earth science ch. 7
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Weatheringand soils #earthscience
Flashcards
15 cards
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Practice quiz
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Questions
15
Answers
1
Rocks are broken apart by...
Biological activity
Weathering
Exfoliation
common sense
2
What is transported soil?
its developed through the processes of weathering over years
continental glaciers
It’s formed in one location and moved to another location.
3
Which of the following changes does not directly contribute to the formation of soil?
Melting of rock to make molten magma
Acidic rainfall reacting with the mineral calcite
Plant roots growing into cracks in the ground
Rocks split apart by water freezing in cracks
4
Soil that is formed in place and remains there is called transported soil.
false, its residual soil
Still being proved
True
Both
5
The mature soil shows layering called soil horizons that are typical of well-developed soils.
both
False
True
Still being proven
6
The softer a rock is, the more resistant it is to physical, or mechanical, weathering?
True
False
Both
7
Animals dont take part in soil formation as they burrow by mixing the components of soil.
Both
still being proven
true
False
8
What kind of weathering occurs in moist places with freezing temperatures?
frost wedging
Physical
Mechanical
Abrasion
9
What is organic matter?
Unweathered bedrock
The development of soil on a solid rock surface
The remains of living organisms in which plants can grow
A mixture of weathered rock and organic matter
10
The amount and kind of weathering that takes place depends on one factor.
False, it depends on three factors!!!
False, it depends on two factors
True
All of the above
11
Feldspar is the most common mineral in rocks at or near earths surface?
false
true
Both
12
What is weathering?
2x+3x2
rocks changing because their exposed to conditions
When it rains
When flowers grow
13
Abrasion is a form of what kind of weathering?
Chemical
Physical, or mechanical
Geological
14
What is it called when water seeps into the ground?
Neither
Infiltration
Both
Soil horizons
15
A mixture of weathered rock and organic matter is...
Organic matter
Soil
