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WorksheetsEarth's Changing Surface, Ch 7, 8, 9
Total questions: 18
Worksheet time: 9mins
Why is leaching a problem in agriculture?
minerals needed by plants rise to the A horizon
minerals needed by plants dissolve and are taken downward
minerals needed by animals are destroyed
minerals reconfigure into bananas
What are the factors of soil development?
time, history, biology
biology, climate, volcanoes
time, slope, parent rock, climate
hurricanes, chemistry, bananas hurricanes, chemistry, bananas
The presence of _____________ is necessary for leaching to occur.
iron
water
sand
silt
Mechanical weathering increases in cold climates
more rainfall speeds up chemical reactions.
high temperatures speed up chemical reactions.
low temperatures increase freezing and thawing, ice wedging
low temperatures speed up chemical reactions. low temperatures speed up chemical reactions.
Chemical weathering speeds up in a hot, wet climates because
more rainfall equals more carbonic acid formed.
hot weather increases the ice wedging in an area.
more cold temperatures means more ice wedging.
more heat means glacial deposits. more heat means glacial deposits.
What erosional force created these landforms?
gravity
glacier
wind
water
What erosional force created these landforms?
gravity
glacier
wind
water
What erosional force created these landforms?
gravity
glacier
wind
water
What erosional force created these landforms?
gravity
glacier
wind
water
Which horizon contains most of the nutrients needed for plant growth?
Horizon A
Horizon B
Horizon C
Horizon Banana
Which of the following is not a component of soil?
gases, water
minerals, weathered rocks
green plants, green grasses
decayed organic matter
What does this picture depict?
a rock sample
a clay sample
a soil profile
a rock profile
Iron in a rock is exposed to oxygen and water, causing a reddish substance on its surface.
mechanical weathering
erosion
chemical weathering
deposition
Winds of a sandstorm calm and drop the sand they were carrying
mechanical weathering
chemical weathering
erosion
deposition
Wind carries massive amounts of sand
mechanical weathering
chemical weathering
erosion
deposition
Ice wedging breaks down concrete.
mechanical weathering
chemical weathering
erosion
deposition
Minerals in a rock dissolve when exposed to carbonic acid.
mechanical weathering
chemical weathering
erosion
deposition
A rock is broken in half by the roots of a plant.
mechanical weathering
chemical weathering
erosion
deposition
