7 th Grade Science Environmental Changes Review A:B: PrimarySecondary #1 __________ weathering is the actual breaking down of rocks. C:D: PhysicalChemical
A:B: PrimarySecondary #1 __________ weathering is the actual
breaking down of rocks. C:D: PhysicalChemical
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C. Physical
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A:B: Secondary #2 __________ weathering causes changes in rocks
from the reaction of different chemicals on the surface of rocks.
C:D: PhysicalChemical Primary
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D. Chemical
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A:B: Chemical weatheringPhysical weathering C:D:
successiondeposition #3 *Tree roots growing through rock. *A
hurricane washing away beaches. *The Grand Canyon. These are
examples of _________ __________
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B. Physical weathering
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A:B: Chemical weatheringPhysical weathering C:D:
successiondeposition #4 *Lichens growing on rock. *Acid rain
causing a statue to change shape. *Rusting Iron. These are examples
of _________ __________
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A. Chemical weathering
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A:B: erosionweathering #5 The process by which wind or water
carry soil and sediment from one place to another is called
__________. C:D: successiondeposition
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A. Erosion
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A:B: To prevent erosionTo cause weathering C:D: To stop
successionTo prevent deposition #6 Why is new grass planted on a
yard that previously had no grass?
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A. To prevent erosion
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A:B: SiltSediment C:D: MulchDeposits #7 Another term for tiny
rock pieces
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B. Sediment
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A:B: erosionweathering #8 The process by which wind or water
carry soil and sediment from one place to another is called
__________. C:D: successiondeposition
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A. Erosion
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A:B: humanswind C:D: pressurewater #9 The most significant
force of erosion is _________.
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D. water
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A:B: WindPressure C:D: HailHumans #10 What are two other causes
of erosion besides water?
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A. Wind & D. Humans
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A:B: primarysecondary C:D: Physicalchemical #11 The most common
cause of ________ weathering is the constant freezing and thawing
of water.
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C. Physical
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A:B: jelly ; chemicalliquid ; physical C:D: chemical ;
physicalacid ; chemical #12 Lichens secrete an ______ that causes
_________ weathering.
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D. acid ; Chemical
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A:B: weatheringdeposition C:D: topographysymbosis #13 The
dropping of sediments after erosion is called __________
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B. deposition
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A:B: rock weathering sediment erosion - deposition rock
weathering erosion sediment - deposition #14 Put the following in
order: erosion, deposition, weathering, sediment, and rock. C:D:
erosion deposition weathering rock - sediment sediment rock
weathering deposition - erosion -
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A. rock weathering sediment erosion - deposition
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A:B: WatershedIsland C:D: NeitherBoth #15 Land that surrounds a
water source
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A. Watershed
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A:B: Pollutes waterDamages the watershed C:D: NeitherBoth A and
B #16 Why is poring oil down a drain unsafe for the
environment?
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D. Both A and B
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A:B: It will pollute the watershed It will pollute the water in
Lake Waco C:D: NeitherBoth A and B #17 How will the dairy farms
along the northern Bosque River affect the drinking water in
Waco?
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D. Both A and B
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