Q.1
Fan-shaped river deltas arch out into the sea as the river splits into multiple distributaries. Which of the following is the other name for fan shaped deltas?
  • Cuspate
  • Arcuate
  • Bird’s foot
  • Habispate
Q.2
Gorges, also known as canyons, are deep ravines. One of the most famous is the Grand Canyon in Arizona, with an average depth of 1 mile. Which of these is a way these gorges commonly form?
  • Waterfalls create deep plunge pools and as they retreat upstream they leave behind steep sided gorges
  • Rivers in arid regions erode vertically with little rain fall to erode the sides
  • Geological uplift and other geological processes form gorges
  • Glacial valleys are flooded due to rising sea levels
Q.3
At what point on a meander bend does deposition occur?
  • On the inside of the meander bend
  • On the outside of a meander bend
  • At the start of the point where the meander turns
  • At the point where the meander ends
Q.4
Flood plains provide fertile farming land and level sites for industry and settlements. How do flood plains form?
  • As meanders erode sideways and travel downstream they leave behind a flat wide valley bottom. During a flood event rich fertile alluvial soils are deposited there
  • As rivers flood they scour out the land either side of the flood plains, leaving behind a flat area for occupation
  • As people settled on the flood plains they removed the trees, leaving a deforested plain behind. Without the trees to control flooding these plains are subjected to flash floods
  • As rivers flood they deposit huge amounts of silt, filling up the narrow valley floor, leaving a wide valley bottom as the original valley fills up
Q.5
What is the name of the islands that form in the middle of a braided channel?
  • Eyots
  • Crannog
  • Hook and spit
  • Sand bars
Q.6
What is the name given to the point where two rivers meet?
  • Influence
  • Stanfluence
  • Gradfluence
  • Confluence
Q.7
What is a braided channel?
  • When two or more rivers meet or divide
  • When the main channel splits into smaller sub-channels
  • When meanders are cut off as the neck narrows
  • When the channel twists across the valley floor
Q.8
Why is river discharge greater downstream?
  • Extra water from factories discharges into rivers
  • Extra water from the sea enters the channel
  • Extra water from tributary streams, surface runoff, throughflow and baseflow enters the river
  • Extra water enters the river as the ground water rises up from underground reservoirs
Q.9
As rivers move laterally across the floor of a flood plain they erode the banks to form sweeping curves. What is the term for these curves in the river channel?
  • Ox-bow lakes
  • Braided channels
  • Meanders
  • Rapids
Q.10
Billabongs are a famous type of Australian habitat. These form when a meander bend is isolated from the main channel as a new channel is cut across the narrowed neck of a convoluted meander bend. What are these features more commonly known as?
  • Sink holes
  • Meander cut offs
  • River braiding
  • Oxbow lakes
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