Paper 2 · June 2013 · Rivers and Landforms

Which of the following changes in a river channel is most likely to increase the amount of deposition taking place?

AAn increase in the river's velocity.

BAn increase in the channel gradient.

CAn increase in the river's discharge.

DA decrease in the river's velocity.

Explanation

Deposition happens when a river loses energy and can no longer carry its load; a fall in velocity is the main cause, while rising velocity, steeper gradient or greater discharge all increase the river's carrying capacity instead.

Derived from ZIMSEC Geography 2248/2 Paper 2, June 2013, Q1

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