The major causes of change in population size are

• A. births,deaths and migration
• B. births,marriage and deaths
• C. births,accidents and deaths
• D. migration,fertility and marriage

The texture of the soil depends on the constitution of?

• A. sand. silt and humus
• B. sand, clay and stones
• C. sand, silt and clay
• D. sand, clay and quartz

Another name for the core of the earth is

• A. lithosphere
• B. barosphere
• C. troposphere
• D. endosphere

Production of diamond in thousand of carats. The percentage of diamond produced by 'Other' is approximately

• A. 5.38%
• B. 9.80%
• C. 10.00%
• D. 10.26%

An unsuitable natural condition for the cultivation of cotton is?

• A. a loose sandy soil
• B. an annual rainfall of 500mm to 1000 mm with most of it falling in the growing season
• C. temperature of about 21° during growing season
• D. clear sunny skies after the plant is fully matured

The area marked P is

• A. Udi Plateau
• B. Oban Hills
• C. Western Uplands
• D. Obudu Plateau

The vegetation belt associated with valuable hard wood is the

• A. Sahel Savanna
• B. Tropical rainforest
• C. Coniferous forest
• D. Mediterranean forest

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

The factor controlling the onset and cessation of the rainy season in Nigeria is the?

• A. latitudinal extent of the country
• B. presence of plateaux and highlands
• C. movement of the Inter Tropical Discontinuity
• D. presence of the warm Guniea Current

In which of the following do fishes thrive best?

• A. Ocean deeps
• B. Continebtal shelf
• C. Deep sea plains
• D. Continental slopes