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Mixed Review 3
Test Description: Mixed Review 3
Instructions: Answer all questions to get your test result.
1) An underground surge in magma causes a sudden and significant increase in the ground temperature of a glacier-covered volcano. This will most likely result in
A
flooding or a mudslide
B
a global temperature increase
C
a tidal wave
D
a forest fire
2) Water chemically breaks down rocks because
A
materials dissolved in the water are deposited.
B
acids in the water react with chemicals in the rock.
C
water is not affected by wind.
D
water expands when it freezes.
3) The component of soil that is made up of organic material is dark and is called
A
abrasion
B
leaching
C
bedrock
D
humus
4) Which of the following areas would most likely experience the most weathering?
A
all areas are subject to the same amounts of weathering
B
an area with heavy rains, constant temperatures, and gentle winds
C
an area with high winds, significant rain, hot summers, and freezing winters
D
an area with constant heat, minimal rain, and high winds
5) Which of the following statements describes how a rock changes after it is in a riverbed for a long time?
A
The edges of the rock are worn away, so its surface becomes smoother
B
The rock absorbs water from the riverbed and becomes softer
C
Chunks of the rock break off, and the rock becomes rougher
D
The rock rapidly breaks into smaller pieces
6) Why does air chemically weather rock?
A
The rock wears away after wind blows sand against the rock.
B
Air fills cracks in the rock and later expands, causing the cracks to enlarge.
C
The air molecules are abrasive.
D
The oxygen in the air combines with the elements in the rock in a process called oxidation (rust).
7) Which human activities can help prevent soil erosion?
A
planting cover crops and employing contour plowing methods
B
strip mining and deforestation
C
building cities and highways
D
growing crops and burning fossil fuels
8) Mechanical weathering can cause cracks in rocks in Georgia's northern mountains to widen. How did the cracks most likely form?
A
ice wedging as water seeps into cracks, freezes, expands, breaks rock apart, melts, and seeps deeper into the rock.
B
Earthquakes
C
oxidation as iron-rich minerals rust when they touch oxygen
D
abrasion as sand blasts the rock when it is windy
9) A delta is where a river empties into the sea and dumps its load of silt. A famous delta is found in Mississippi. The process of dumping silt is called
A
evaporation
B
deposition
C
weathering
D
erosion
10) Sediment falls to the bottom of the ocean over a long period of time forming layers (stratification). The layers compact and cement into rock that contains seashells. What kind of rock has formed?
A
sedimentary
B
sediment
C
igneous
D
metamorphic
*select an answer for all questions
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