Multiple Choice
Identify the choice
that best completes the statement or answers the question.
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1.
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When rocks undergo weathering, they
become
a. | magma | c. | sediment | b. | igneous
rocks | d. | volcanic cones |
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2.
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When water mixes with carbon dioxide gas in the air
or soil, ____ forms.
a. | carbonic acid | c. | calcite | b. | lactic
acid | d. | oxygen |
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3.
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The major process that wears down whole mountain
ranges is
a. | earthquakes | c. | plate
movement | b. | weathering | d. | silt
deposition |
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4.
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Mechanical weathering happens faster in a ____
climate.
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5.
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The crustal plates of Earth move due to being
dragged along by
a. | convection currents in the mantle | c. | the rotation of the inner core | b. | the rotation of Earth on its axis | d. | the prevailing
winds |
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6.
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Over time this rocky cliff
will become many smaller rocks and eventually become sand. This process isa. | erosion | c. | weathering | b. | deposition | d. | uniformitarianism |
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7.
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Oxidation occurs when materials containing ____ are
exposed to oxygen and water and rusts.
a. | iron | c. | kaolinite | b. | carbonic
acid | d. | all of the above |
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8.
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Chemical weathering of rocks occurs and helps to
form soils. Which of the following is an agent of chemical weathering?
a. | freezing and thawing | c. | rocks sliding down the side of a mountain | b. | tree roots growing through rocks | d. | carbonic
acid |
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9.
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The rock, mineral fragments, and sediment in soil
comes from rock that has been ____.
a. | blasted | c. | weathered | b. | carved | d. | chemically
treated |
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10.
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Ice wedging is caused 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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11.
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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 |
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12.
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Which of these usually causes mechanical weathering
but some also cause chemical weathering?
a. | animals burrowing | c. | oxidation | b. | plants | d. | carbonic acid |
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13.
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All of the following cause mechanical
weathering EXCEPT ____.
a. | ice | c. | burrowing animals | b. | tree
roots | d. | carbonic acid |
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14.
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A boundary where two tectonic plates come together,
or collide, is called a
a. | divergent boundary | c. | transform boundary | b. | convergent
boundary | d. | transfer boundary |
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15.
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What landform is created when two continental
plates collide?
a. | mountains | c. | volcano | b. | ocean
basin | d. | canyon |
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16.
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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 |
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17.
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In cold climates rocks are broken into pieces by
the action of water. This process that breaks down rocks and helps form soil can best be
explained by
a. | leaching of minerals from the rock | c. | chemical weathering due to water and oxidation | b. | decomposition due to the action of ice crystals | d. | mechanical
weathering due to freezing and thawing |
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18.
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Chemical weathering happens faster in a ____
climate.
a. | warm, dry | c. | cold,
dry | b. | warm, wet | d. | cold,
wet |
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19.
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When Joe saw the Rocky Mountains for the first
time, he said, “These mountains are much younger than the mountains in North
Georgia.” How could he know this?
a. | their sedimentary layers are still
exposed | c. | they are taller so they are actually
older | b. | the Rocky Mountains have tall rugged tops from long-term
weathering | d. | the North Georgia Mountains have rounded tops from long-term
weathering |
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20.
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Which theory best explains the change in the
position of the continents during the history of Earth?
a. | natural selection | c. | plate
tectonics | b. | continental drift | d. | the rock
cycle |
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