Land Resources Answers

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1
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Which statement defines an ore?

A
Rock broken down to become part of the topsoil.
B
Rock dug out from the earth to use in construction.
C
Rock dug out from the deep inside earth and refined.
D
Rock exposed as a result of loss of topsoil.
2
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Which is a result of topsoil loss?

A
increased soil fertility
B
poor crop production
C
softened soil surface
D
deposition of aggregate
3

Which describes an attribute of nonrenewable resources?

A
exist in fixed amounts
B
are unlimited
C
can often be replaced in a short time
D
are replaced faster than they are used
5

An aggregate is one type of land resource. What is an aggregate?

A
a layer of solid rock found beneath soil
B
the top layer of soil
C
a natural mixture of sand, gravel, and crushed stone
D
a naturally occurring mineral or rock
6

In which two places is aggregate generally found?

A
floodplains and alluvial fans
B
alluvial fans and mines
C
mines and beneath the topsoil
D
beneath the topsoil and above the topsoil
7

Which is a use for clay?

A
ceramics
B
batteries
C
plaster
D
chalk
8

What agency is directly related to supervising and managing campgrounds?

A
US Forest Service
B
Bureau of Land Management
C
US Fish and Wildlife Service
D
National Park Service
9

Which statement describes why the US Forest Service is important?

A
It protects ecosystems, supervises public access of lands, and manages wilderness areas.
B
It supervises public access of lands, manages wilderness areas, and enforces federal wildlife laws.
C
It manages wilderness areas, enforces federal wildlife laws, and helps foreign governments with international conservation efforts.
D
It enforces federal wildlife laws, helps foreign governments with international conservation efforts, and protects ecosystems.

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