Because rivers constitute such a small percentage of

This preview shows page 28 - 31 out of 31 pages.

chap11

Because rivers constitute such a small percentage of the earths total water from GEOG 1113 at Georgia State University

67 )   Because rivers constitute such a small percentage of the earth 's total water supply , they play a small role in landform change . Answer :
 True
 False
68 )   A floodplain consists of alluvium . Answer :
Get answer to your question and much more
69 )   A major drainage basin consists of a single watershed . Answer :
Get answer to your question and much more
70 )   Stream width , depth , and velocity are all responsive to discharge rates . Answer :
Get answer to your question and much more
72 )   The increased velocity downstream in the Mississippi River is masked by its reduced turbulence . Answer :
 True
 False
73 )   Erosion of the valley walls of a channel normally occurs on the outside curve of a meander . Answer :
Get answer to your question and much more
74 )   When a stream is graded ( at grade ) , it has attained its lowest possible gradient and slowest flow velocity . Answer :
Get answer to your question and much more
75 )   Nickpoints migrate downstream . Answer :
Get answer to your question and much more
76 )   Aggradation of a stream channel produces scouring and alluvial terraces . Answer :
 True
 False
77 )   Terraces form when a river 's energy increases . Answer :
Get answer to your question and much more
78 )   Flood control often produces conditions of worse flooding in subsequent high - water events . Answer :
Get answer to your question and much more
79 )   Deforestation in the headwater regions of a river can cause the river to flood more frequently in downstream areas . Answer :
Get answer to your question and much more
80 )   A flood recurrence interval of 100 years means that floods of that size will occur only once every 100 years . Answer :
 True
 False
82 )   The construction of levees can actually increase the risk of a catastrophic flood . Answer :
Get answer to your question and much more
83 )   Rivers make excellent political boundaries since they are clearly defined landform features . Answer :
Get answer to your question and much more
67) Because rivers constitute such a small percentage of the earth's total water supply, they play a small role in landform change. Answer:True False
68) A floodplain consists of alluvium.
69) A major drainage basin consists of a single watershed.
70) Stream width, depth, and velocity are all responsive to discharge rates.
71) The suspendedload of a stream's transportation refers to those coarser materials that are dragged along
the stream bed. Answer:True False
72) The increased velocity downstream in the Mississippi River is masked by its reduced turbulence.
73) Erosion of the valley walls of a channel normally occurs on the outsidecurve of a meander.
74) When a stream is graded (at grade), it has attained its lowest possible gradient and slowest flow velocity.
75) Nickpoints migrate downstream. Answer:True False
76) Aggradation of a stream channel produces scouring and alluvial terraces.
77) Terraces form when a river's energy increases.
78) Flood control often produces conditions of worse flooding in subsequent high-water events.
79) Deforestation in the headwater regions of a river can cause the river to flood more frequently in downstream areas. Answer:True False
80) A flood recurrence interval of 100 years means that floods of that size will occur only once every 100 years.
81)
Historically, zoning laws regarding floodplain use have been strictly adhered to, thereby diminishing the amount of damage done during floods.
82) The construction of levees can actually increase the risk of a catastrophic flood.
83) Rivers make excellent political boundaries since they are clearly defined landform features. Answer:True False

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture