21-7 Question Preview (ID: 1940)

21-7. TEACHERS: click here for quick copy question ID numbers.

Dissolving carbon dioxide in water to form carbonic acid causes this
a) Earthquakes
b) Global warming
c) Acid rain
d) Volcanoes to erupt

The removal and transportation of weathered and nonweathered materials are this
a) Weathering
b) Physical weathering
c) Erosion
d) Small furry animals

What is the most effective physical weathering agent?
a) Snow
b) Glaciers
c) Ice
d) Water

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

Rivers slowing at continental boundaries and depositing sediment forms these
a) Arches
b) Mountains
c) Canyons
d) Deltas

What do glaciers form as they erode mountains?
a) Mountains
b) Lakes
c) U Shaped valleys
d) Rivers

What are arches caused by?
a) Fast moving wind
b) Deforestation
c) Destruction of land by humans
d) Fast moving water

A rock made of pebbles is a
a) Sandstone
b) Mudstone
c) Limestone
d) Conglomerate

Which of the following is not an example of physical weathering?
a) Gravity
b) Rain
c) Leaching
d) Wind

Which of the following is not a characteristic of rocks?
a) Porous
b) Fossils
c) Soft
d) Smooth

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