Exam Revision

Where a river starts is called its

• Mouth

• Start

• Source

• Basin

Where a river ends.

• End

• Start

• Source

• Mouth

The main features of the upper course of a river arc.

• V Shaped valley

• Potholes

• Waterfalls, rapids, and gorges

• Ox-bow lake

A meander begins where in the river

• upper course

• middle course

• lower course

• source

The river becomes wider and deeper.

• upper course

• middle course

• start

• lower course

Causes of flooding include:

• Urban growth

• Deforestation

• Prolonged rainfall

• Good drainage

Impacts of flooding include:

• Disease

• Death

• Damage to property

• Deposition of soil material

Evaporation is

• gas turning to liquid

• Rain falling

• liquid turning to gas

• the relative humidty

Types of precipitation include:

• rain

• sleet

• hail

• snow

Surface run-off is

• water absorbing into the soil

• water flowing over the surface of land

• liquid changing state

• percolation