(a) Name two types of river deltas. (2 marks)
-Arcuate
-Birds foot
-Estuarine.
-Inland.
(b) State four conditions that are necessary for formation of a delta. (4 marks)
-Large quantities of sediments/silt carried by the river.
-Low velocity/speed of the river at the mouth/gentle slope at the river mouth.
-Weak sea waves/weak tidal currents at the coast/ calm sea at the river mouth.
-Shallow continental shelf around the river mouth/shore.
-Faster rate of deposition than the rate of removal of silt at the river mouth.
-Absence of obstacles/filters along the river course.
steve williams answered the question on November 17, 2017 at 10:17
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