A major feature of the tropical continental climates is the?

A. relatively low annual range of temperature

B. regular and reliable rainfall

C. excess of evaporation over rainfall

D. excess of rainfall over evaporation

The most dominant pair of active factors affecting plants growth is?

A. soil and fauna

B. climate and soil

C. climate and topography

D. topography and man

The major constituents of a typical soil are?

A. gravel, sand, silt and clay

B. mineral matter, organic matter, air and water

C. stone, mineral matter, pore spaces and micro-organism

D. calcium, magnesium, potassium amd sodium

In a humid areas, farmers add lime to the soil to? development

A. facilitate the absorption of nutrients

B. encourage the development of green leaves

C. act as fertilizer

D. reduce acidity

Which of the following trees is most suitable for pulp and paper production?

A. Obeche

B. Ebony

C. Spruce

D. Mahogany

Urban centres are best distinguished from rural, settlements by their?

A. morphology and location

B. population and function

C. site and function

D. morphology and demography

A sharp decrease in the population of herbivores in an ecosystem is likely to lead to?

A. an increase in the amount of plant cover

B. a decrease in the population of rodents

C. an increase inthe population of rodents

D. a decrease in the population of saprophytes

The population size of any place is best determined by?

A. the level of industrialization and the standard of living of the people

B. natural change and migration

C. census and vital registeration

D. its migration and employment indices

A broad-based population pyramid is composed mainly of?

A. old dependants

B. young dependants

C. active inhabitants

D. more males than females

In which of the following regions is the high population density due to industrial development?

A. China

B. The Nile Valley

C. Java

D. The Rhur Valley