Cities of high population densities develop on plains because

I. act as climate barriers
II. have fertile soils
III. lack heavy rainfall
IV. have terrain with ease oof communication

A notable problem of air transportation in tropical Africa is

Wich of the following is most affected by drought and flood

The reasons for siting industries in urban areas include;

I. employment
II. revenue generation
III. religious tolerance
IV. unemployment provision

Which of the following factors explains the need for international trade

I. variation in technology
II. uniformity in taste of goods
III. language barrier
IV. difference in natural resources