What pollution is caused by all the following except

A. treated sewage

B. industrial waste

C. oil spillage

D. fishing with chemicals

'' The climate is constantly warm, rainfall is relatively abundant with double maxima, there is no month without rain'' These are the characteristics of the

A. Monsoon climate

B. Warm temperate climate

C. Equatorial climate

D. Mediterranean climate

Which of the following climatic types has the smallest annual range of temperature?

A. Cool temperate

B. Warm temperate

C. Tropical desert

D. Equatorial

Which of the is the first stage in the process of lumbering?

A. Trees are cut into logs

B. Suitable species are identified

C. Trees are felled with power saw

D. Platforms are built for buttress trees

Which of the criteria is not important in distinguishing between a village and a town?

A. Geographical situation

B. Population size

C. Social amenities

D. Variety of activities

The number of persons per square kilometer of land is called

A. total population

B. high population

C. population density

D. optimum population

Which of the following is a disadvantage of high population density?

A. Unemployment

B. Low cirme rate

C. Low pressure on social amenties

D. Regular flow of traffic

Which factor of industrial location explains the establishment of cement industries near areas of limestone deposit? Proximity to

A. power

B. source of raw materials

C. market

D. income sources

Which of the following modes of transportation provides door-to-door services?

A. road transport

B. rail transport

C. ocean transport

D. air transport

African rivers exhibit the following characteristics except

A. that they have their sources in the interior highlands

B. the presence of rapids and waterfalls on their courses

C. that they exhibit seasonal variations in water volume

D. that they have great depths