Zuma rock, Zaria and Kano inselbergs in Nigeria are within the confines of the?

A. Western uplands

B. Eastern highlands

C. North central highlands

D. North-east highlands

The Nigerian river with longest distance of internal waterways is?

A. River Osun

B. River Ogun

C. River Benue

D. Cross River

Tress in the mangrove forest have aerial roots because they?

A. have to absorb water

B. need more air than water

C. have to absorb nutrients

D. do not require much water

A settlement that drives its domestic water from a waterfall in Nigeria is?

A. Bida

B. Jos

C. Erin-Ijesa

D. Omu-Aran

Wheat is cultivated through irrigation in Nigeria in?

A. Kano state

B. Kogi state

C. Kaduna state

D. Nasarawa state

The most economically renewable energy substitute to petroleum in Nigeria is?

A. coal

B. hydroelectricity

C. wind

D. sunlight

The equatorial climate is found in the?

A. Zaire Basin

B. Namib desert

C. Horn of Africa

D. Veld of South Africa

Unemployment is at a high level in West African cities because?

A. there is a large youthful population

B. many of the dwellers are skilled

C. many of the dwellers are unskilled

D. industrialization is at a slow pace

The arid regions of Africa have great potentials for?

A. nuclear energy

B. hydro energy

C. solar energy

D. chemical energy

Economic activities in tropical Africa largely depend on?

A. primary production

B. secondary production

C. tertiary production

D. quaternary production