GEOGRAPHY FORM 3 - RIVERS AND CORAL REEFS

A river performs the following functions, except

• erosion

• transportation

• deposition

• weathering

Erosion of a river valley is influenced by the following, except

• corrosion

• traction

• hydraulic action

• attrition

The process by which materials broken up into small fragments as they roll and collide along a river is termed

• corrosion

• hydraulic action

• attrition

• solution

The drainage pattern which is tree like in appearance and develops on uniform rocks is termed

• radial

• parallel

• dendritic

• trellis

The drainage systems shown in diagram (i) and (ii) are

• dentritic and trellis

• trellis and dentritic

• parallel and trellis

In the diagram "B" represents

• source

• mouth

• confluence

• main tributary

In the diagram "D" represents

• source

• mouth

• confluence

• main tributary

In the diagram "C" represents

• source

• mouth

• confluence

• main tributary

The line enclosing the river drainage system is termed a/an

• drainage basin

• watershed

• river capture

• river's source

Which is NOT a condition for coral growth

• warm temperatures, about 27 degrees celsius

• fresh or silt laden water

• shallow sunlit water

• water with normal salinity