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Weathering Quiz

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

The difference between mechanical and chemical weathering is ____.
a.
the length of time each takes to break up a rock
b.
that only chemical weathering involves water
c.
the way they affect the makeup of a rock
d.
all of the above
 

 2. 

Chemical weathering ____.
a.
is caused by freezing and thawing
b.
breaks apart rocks by physical processes
c.
occurs when chemical reactions dissolve or change the minerals in rocks
d.
none of above
 

 3. 

The rate of weathering depends upon the area's ____.
a.
oxygen
c.
water
b.
climate
d.
soil
 

 4. 

All of the following cause mechanical weathering EXCEPT ____.
a.
ice
c.
burrowing animals
b.
tree roots
d.
carbonic acid
 

 5. 

Mechanical weathering ____.
a.
breaks apart rocks by physical processes
b.
occurs when chemical reactions dissolve or change the minerals in rocks
c.
occurs when iron is exposed to oxygen and water
d.
none of the above
 

 6. 

Chemical weathering is more rapid in a ____ climate.
a.
warm, dry
c.
cold, dry
b.
warm, wet
d.
cold, wet
 

 7. 

Why is ice wedging most obvious in the mountains?
a.
because the altitude directly contributes to how the water freezes in the cracks of rocks
c.
because the pressure in the mountains allows for the repeated freezing and thawing of water caught in cracks of rocks
b.
because gravity pulls on the water in the cracks more if its found higher in the mountains
d.
because the temperature changes in the mountains allow for the repeated freezing and thawing of water caught in cracks of rocks
 

 8. 

Mechanical weathering is more rapid in a ____ climate.
a.
dry
c.
cold
b.
hot
d.
humid
 

 9. 

When water mixes with carbon dioxide in the air, it forms __________.
a.
sulfuric acid
c.
carbonic acid
b.
hydrochloric acid
d.
ozone
 

 10. 

Surface processes that work to break down rock are called__________.
a.
erosion
c.
ice wedging
b.
weathering
d.
oxidation
 

 11. 

Oxidation occurs when materials containing ____ are exposed to oxygen and water.
a.
iron
c.
kaolinite
b.
carbonic acid
d.
all of the above
 

 12. 

Ice wedging is brought about by ____.
a.
carbonic acid freezing on rocks
c.
water freezing and thawing
b.
water and oxygen reacting
d.
rocks colliding with each other
 



 
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