Soil erosion caused by water can be controlled by
Overgrazing and bush burning
Ploughing and harrowing
Land clearing and stumping
Afforestation and erection of bunds
Correct answer is D
No explanation has been provided for this answer.
The two main elements of climate which affect soil formation are
Rainfall and temperature
Rainfall and air
Temperature and light
Wind and relative humidity
Correct answer is A
No explanation has been provided for this answer.
Which of the following processes does not lead to the physical disintegration of rocks? The
Heating and cooling of rock surfaces
Expansion and contraction of rock minerals
Formation of cracks and crevices
Rapid cooling and solidification of rocks
Correct answer is D
No explanation has been provided for this answer.
The largest kola-nut producing vegetation zone in West Africa is the
Sahel savanna
Sudan savanna
Derived savanna
Mangrove swamp
Correct answer is C
No explanation has been provided for this answer.
Which of the following groups of crops will perform better in the savanna zone of West Africa?
Cotton, millet and groundnut
Cotton, coffee and cocoa
Tobacco, sorghum and banana
Sorghum, millet and oil-palm
Correct answer is A
No explanation has been provided for this answer.