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?
0%
Cuspate
0%
Arcuate
0%
Bird’s foot
0%
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?
0%
Waterfalls create deep plunge pools and as they retreat upstream they leave behind steep sided gorges
0%
Rivers in arid regions erode vertically with little rain fall to erode the sides
0%
Geological uplift and other geological processes form gorges
0%
Glacial valleys are flooded due to rising sea levels
Q.3.
At what point on a meander bend does deposition occur?
0%
On the inside of the meander bend
0%
On the outside of a meander bend
0%
At the start of the point where the meander turns
0%
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?
0%
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
0%
As rivers flood they scour out the land either side of the flood plains, leaving behind a flat area for occupation
0%
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
0%
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?
0%
Eyots
0%
Crannog
0%
Hook and spit
0%
Sand bars
Q.6.
What is the name given to the point where two rivers meet?
0%
Influence
0%
Stanfluence
0%
Gradfluence
0%
Confluence
Q.7.
What is a braided channel?
0%
When two or more rivers meet or divide
0%
When the main channel splits into smaller sub-channels
0%
When meanders are cut off as the neck narrows
0%
When the channel twists across the valley floor
Q.8.
Why is river discharge greater downstream?
0%
Extra water from factories discharges into rivers
0%
Extra water from the sea enters the channel
0%
Extra water from tributary streams, surface runoff, throughflow and baseflow enters the river
0%
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?
0%
Ox-bow lakes
0%
Braided channels
0%
Meanders
0%
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?
0%
Sink holes
0%
Meander cut offs
0%
River braiding
0%
Oxbow lakes
Support mcqgeeks.com by disabling your adblocker.
Please disable the adBlock and continue. Thank you.