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Weathering Quiz 2

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

 1. 

mc001-1.jpgWhat process is slowly breaking these rocks into smaller pieces?
a.
erosion
c.
deposition
b.
weathering
d.
uniformitarianism
 

 2. 

Mechanical weathering ...
a.
breaks apart rocks by physical processes
c.
happens when iron is exposed to oxygen and water
b.
happens when chemical reactions dissolve or change the minerals in rocks
d.
is only caused by plants
 

 3. 

Ice wedging is caused by
a.
carbonic acid freezing on rocks
c.
water freezing and thawing in rocks
b.
water and oxygen combining
d.
rocks crashing into each other
 

 4. 

The rock, mineral fragments and sediment in soil come from rock that has been ...
a.
blasted
c.
weathered
b.
carved
d.
chemically treated
 

 5. 

Which of these causes mechanical weathering BUT can also sometimes cause chemical weathering?
a.
animals burrowing
c.
carbonic acid
b.
oxidation
d.
plants
 

 6. 

Oxidation happens when materials containing _______ are exposed to oxygen and water and begins to rust.
a.
iron
c.
kaolinite
b.
carbonic acid
d.
feldspar
 

 7. 

Chemical weathering of rocks happens and helps to form soil.  Which of the following causes chemical weathering?
a.
freezing and thawing of water
c.
rocks sliding down the side of a mountain
b.
tree roots growing through rocks
d.
carbonic acid
 

 8. 

When water mixes with carbon dioxide gas it can form
a.
carbonic acid
c.
calcite
b.
lactic acid
d.
oxygen
 

 9. 

All of these cause mechanical weathering except....
a.
ice
c.
burrowing animals
b.
tree roots
d.
carbonic acid
 

 10. 

What process can slowly wear down a chain of mountains?
a.
earthquakes
c.
plate movement
b.
weathering
d.
silt deposition
 



 
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