Global Change — Cumulative exam Answers

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Which of the following is an example of physical weathering?a.ice forming in cracks of rocksb.acid rain falling on sidewalksc.waves washing over rocks on the beachd.water washing away soil in an area used by off-road vehicles

A
A
B
B
C
C
D
D
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Humus creates good soil tilth, which is an indirect benefit of microorganism action.

A
T
B
F
7

Changes to waterways will discontinue if human impacts on waterways cease.

A
T
B
F
8

The cracking of rock due to heat is an example of _______.a.erosionb.physical weatheringc.chemical weatheringd.none of the above

A
A
B
B
C
C
D
D
11

Buffer zones _______.a.can help regulate the acidity of aquatic ecosystemsb.help increase erosion ratesc.are set up around natural resource areasd.all of the above

A
A
B
B
C
C
D
D
17

Please select the word from the list that best fits the definition

A
dew point
B
relative humidity
C
clouds
D
precipitation

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