Air Resources — Unit test Answers

25 verified answers
21
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Which resource is a nonrenewable resource?

A
fresh water
B
maple trees
C
solar energy
D
precious metal
22
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What is one important role that ocean waters have in heating Earth?

A
absorb and transport solar energy
B
transport nutrients and waste
C
create and emit solar energy
D
wear away rock and soil
23

Which is a result of topsoil loss?

A
increased soil fertility
B
poor crop production
C
softened soil surface
D
deposition of aggregate
24

What is the most effective way to protect dry lands from desertification?

A
terrace farming
B
mine digging
C
planting a tree belt
D
constructing a dam

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