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Water that returns to the oceans as surface flow from streams is ____________________.

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A trellis drainage is a tree branchlike pattern of streams.

A) True
B) False

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Define drainage pattern and describe the major drainage patterns.

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Drainage patterns represent the arrangem...

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The ultimate base level is the lowest limit to which a stream or river can erode.

A) True
B) False

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A stream erodes material from its banks and bed by:


A) suspension.
B) hydraulic action.
C) abrasion.
D) suspension and hydraulic action.
E) hydraulic action and abrasion.

F) A) and D)
G) C) and E)

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Streams or rivers possess two kinds of energy. Kinetic energy is the energy of:


A) water molecules.
B) position.
C) gravity.
D) motion.
E) channeling.

F) B) and D)
G) A) and B)

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The approximate percentage of the Earth's surface that is covered by water is about:


A) 10%.
B) 30%.
C) 50%.
D) 70%.
E) 100%.

F) A) and E)
G) B) and E)

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Ridges of alluvium left along stream's margins by repeated deposition during floods are called ____________________.

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The ultimate base level for a stream is:


A) sea level.
B) the nearest lake.
C) the nearest stream.
D) the nearest spring.
E) the nearest valley.

F) B) and E)
G) A) and C)

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The Rocky Mountains, which separates drainage in opposite directions, is also referred to as the continental divide.

A) True
B) False

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