On September 23 each year, the earth experiences the?

A. summer solstice

B. autumnal equinox

C. winter solstice

D. vernal equinox

Which of the following explains the variation in the lengths of day and night with the seasons?

A. Earth's rotation on its axis

B. Earth's revolution along its orbit

C. The inclination of the earth

D. the sperical shape of the earth

Which of the following pairs of longitudes forms a Great Circle?

A. 60°E and 140°E

B. 40°W and 140°E

C. 20°W and 160°W

D. 10°E and 180°

A layer of very fine wind-deposited sand and silt is known as?

A. loess

B. barchan

C. seif

D. bajada

The variation in the volume of water in a river over time is known as its?

A. regime

B. discharge

C. fluctuation

D. velocity

Which of the following features is formed by the lower plucking, grinding and dragging action of ice?

A. Hanging valley

B. Arete

C. Pyramidal peak

D. Cirque

Which of the following are associated with the lower course of a river?

A. Gorge, rapids and waterfalls

B. Corrasion, corrosion and attrition

C. Floodplains, ox-bow lakes and deltas

D. Meanders, cliff and spurs

The decrease in temperature at the rate of 6.5°C for every 1,000m of ascent is termed?

A. dry adiabatic lapse rate

B. normal lapse rate

C. wet adiabatic lapse rate

D. temperature inversion

Lands and sea breeze occurs as a result of?

A. daily variations in temperature

B. rotation of the the earth on its axis

C. seasonal movement of the I.T.C.Z

D. differential heating of land amd water

The main effect of distance from the sea on rainfall is to reduce its?

A. amount and seasonality

B. amount and duration

C. intensity and seasonality

D. intensity and duration