On a topographical map, a number of inverted-V contours pointing up slope up slope indicate a?

A. valley

B. ridge

C. saddle

D. spur

Which of the following items may not be necessary for a chain survey?

A. Arrow head

B. Gunter's chain

C. Ranging pole

D. Prismatic compass

Rocks can be classified into three major groups according to their?

A. age and appearance

B. origin and appearance

C. age and origin

D. origin and colour

An example of a calcareous rock is?

A. shale

B. granite

C. lignite

D. limestone

The main composition of coal is?

A. carbon

B. iron

C. clay

D. quartz

A prominent erosional landform of wind action is a?

A. seif

B. barchan

C. playa

D. yardang

The column of ocean water moving from a low to a high latitude is described as a?

A. cold ocean current

B. warm ocean current

C. costal tidal wave

D. cool ocean current

When the temperature at sea level is 10°C, what is the temperature of the air at a height of 2000 metres above sea level?

A. 11.2°C

B. 13.2°C

C. 5.8°C

D. 8.8°C

When there is a remarkable difference between the data taken from the dry bulb and the wet bulb thermometer, it implies that?

A. there is little water vapour inthe air

B. there is great cloudness

C. the atmosphere is stable

D. evaporation is no longer taking place

Iroko, Mahogany and Obeche trees are associated with?

A. Mediterranean woodland

B. Temperate coniferous

C. Tropical rainforest

D. Tropical savanna