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21-7
Test Description: 21-7
Instructions: Answer all questions to get your test result.
1) Dissolving carbon dioxide in water to form carbonic acid causes this
A
Volcanoes to erupt
B
Global warming
C
Acid rain
D
Earthquakes
2) The removal and transportation of weathered and nonweathered materials are this
A
Physical weathering
B
Erosion
C
Small furry animals
D
Weathering
3) What is the most effective physical weathering agent?
A
Glaciers
B
Snow
C
Water
D
Ice
4) How are canyons formed
A
By rivers drying up
B
By quickly moving rivers carrying alot of sediment
C
By rivers removing sediment
D
By slow moving rivers washing away sediment
5) Rivers slowing at continental boundaries and depositing sediment forms these
A
Mountains
B
Deltas
C
Arches
D
Canyons
6) What do glaciers form as they erode mountains?
A
U Shaped valleys
B
Lakes
C
Mountains
D
Rivers
7) What are arches caused by?
A
Destruction of land by humans
B
Fast moving water
C
Fast moving wind
D
Deforestation
8) A rock made of pebbles is a
A
Limestone
B
Sandstone
C
Mudstone
D
Conglomerate
9) Which of the following is not an example of physical weathering?
A
Rain
B
Wind
C
Gravity
D
Leaching
10) Which of the following is not a characteristic of rocks?
A
Soft
B
Fossils
C
Porous
D
Smooth
*select an answer for all questions
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