What will be the length of a two-kilometer canal on an air photography on a scale 1: 50 000?

A. 1.6cm

B. 2.0cm

C. 3.2cm

D. 3.6cm

E. 4.0cm

Tropical forests compared with temperate forests have?

A. greater species diversity

B. pure stands of the same species covering large areas

C. greater proportion of herbaceous plants

D. wider-tree girths

E. deeper and more fertile soils

Which of the following is NOT a major contributory factor to the large-scale production of groundnuts in the Gambia?

A. Suitable light sandy soils

B. Easy transport provided by the River Gambia

C. Abundant migrant labour from neighbouring countries

D. Heavy government subsidy on inputs

E. Mechanization of farming

In which of the following rock types is petroleum mainly found?

A. Igneous

B. Plutonic

C. Sedimentary

D. Metamorphic

E. Volcanic

The major physical factor restricting the cultivation of perennial crops in the Sudan savanna of Nigeria is the?

A. seasonal pattern of rainfall

B. low nutrients of soil

C. high mean annual temperature

D. low temperature values during the harmattan

E. seasonal regime of many streams

Which of the following is NOT characteristic of the Podzol horizon?

A. High content of silica

B. High content of iron oxides

C. Ash-grey colour

D. Intense leaching

E. Coarse texture

A major unfavorable factor in locating a steel rolling mill in Katina is the lack of?

A. propermachinery for production

B. a suitable market for finished products

C. appropriate means of transporting the raw material and finished product

D. sufficient land for future expansion

E. adequate unskilled labour for production

Large-scale wheat production is associated with the?

A. Kano River Plains and the Ghezira Plains

B. Ghezira Plains and the Pampas of Argentina Plains

C. Praries of North America and the Pampas of Argentina

D. Ganges Plains and the Pampas of Argentina

Which of the following statements is FALSE about the economy of most West African countries?

A. it has a low growth rate

B. it is based on the export of a few commodities

C. Agro-allied industries are gradually developing

D. Heavy industries predominate

E. Production of consumer goods is increasing

The system of cultivation whereby a piece of land is cultivated for one or two years and is then left to fallow while the farmer moves to another piece of land around the same permanent settlement is known as?

A. shifting cultivation

B. land rotation

C. crop rotation

D. arable cultivation

E. sedentary cultivation