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Weathering, Erosion, and Deposition Homework-Due October 24
Name:______________________________
1. Water chemically breaks down rock because
A. water expands when it freezes.
B. acids in the water react with chemicals in
the rock.
C. materials dissolved in the water are
deposited.
D. water is not affected by wind.
2. The component of soil that is made up of
organic material is called
A. abrasion.
B. humus.
C. bedrock.
D. leaching.
3. Which of the following areas would
experience the most weathering?
A. an area with high winds, significant rain, hot
summers, and freezing winters
B. an area with heavy rains, constant
temperatures, and gentle winds
C. an area with constant heat, minimal rain, and
high winds
D. all areas are subject to the same amounts of
weathering
4. The dissolving of rock by acids that occur
naturally in water
A. is known as acid precipitation.
B. is known as oxidation.
C. is known as chemical weathering.
D. causes most of the mechanical weathering
of rocks.
5. Which of the following statements describes
how a rock changes after it is in a riverbed for
a long time?
A. The rock rapidly breaks into smaller pieces.
B. Chunks of the rock break off, and the rock
becomes rougher.
C. The edges of the rock are worn away, so its
surface becomes
smoother.
D. The rock absorbs water from the riverbed
and becomes softer.
6. Why does air chemically weather rock?
A. The air molecules are abrasive.
B. Air fills cracks in the rock and later expands,
causing the cracks to
enlarge.
C. The oxygen in the air combines with
elements in the rock in a
process called oxidation.
D. The rock wears away after wind blows sand
against the rock.
7. Which of the following is an everyday
example of a chemical phenomenon?
A. Fast moving river water rushes over rocks.
B. Organic acids produced by lichens break
down rock.
C. Rocks tumble down a mountain during a
rockslide.
D. Ice forms in a crack in a rock and makes the
crack larger.
8. 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
9. On a geology research trip, Jeff finds a
deposit of till that is located
along the side of an active glacier. Which type
of deposit did Jeff find?
A. terminal moraine
B. ground moraine
C. medial moraine
D. lateral moraine
10. In which of the following ways is a sea arch
most likely to form?
A. Salt water dissolves the rock until a hole is
formed in the rock.
B. Waves from a strong storm hit the rocks and
quickly form a hole in
the rock.
C. Waves erode a sea cliff until a level
platform is left at the base of the
cliff.
D. The repeated action of waves slowly cuts
through the rock where a
sea cave once existed.
11. A lahar forms during a volcanic eruption
and moves toward a village that is 28 km away.
If the lahar is moving at a rate of 92 km/h, how
much time do the people in the village have to
evacuate?
A. about 3 minutes
B. about 18 minutes
C. about 30 minutes
D. about 180 minutes
13. Which of the following areas would be
most strongly affected by wind erosion?
A. pine forest
B. rocky beach
C. desert
D. grassland
15. Where would you be most likely to observe
saltation on a sand dune?
A. slip face
B. crest
C. windward slope
D. in any area of the dune
Picture goes with #17
12. How does the energy from a wave in
Australia reach the west coast of
the United States?
A. Convection currents carry the energy across
the ocean.
B. The energy travels in wave trains across the
ocean.
C. The energy travels in undersea currents
across the ocean.
D. Water particles carry energy and form
waves close to the coast.
14. Which of the following best describes the
process responsible for the
formation of sand?
A. rocks + waves = sand
B. wind + waves = sand
C. beach + longshore current = sand
D. surf + wave train = sand
16. The picture shows the process of
mechanical weathering that can cause cracks in
rocks in Georgia’s northern mountains to
widen. What is this process called?
A. abrasion
B. dissolution
C. ice wedging
D. oxidation
17. During a field investigation, Andrea made
the illustrations above of various types of mass
movement. Which of the following is a valid
conclusion about the processes shown in
Andrea’s illustrations?
A. A large amount of plant coverage increases
the chance of each of the illustrated processes
occurring.
B. Heavy rainfall increases the chance of each
of the illustrated processes occurring.
C. The steepness of a hillside has no effect on
the chance of each of the illustrated processes
occurring.
D. Gravity is the only factor that determines
whether each of the illustrated processes
occurs.