Which of the following least influences population density in Nigeria?

• A. Mining
• B. Fertile agricultural land
• C. Thick forest vegetation
• D. Tsetsefly infestation

Which of the following regions of Nigeria has heights of up to 1500 m above sea level?

• A. North Central Highland
• B. Western Highland
• C. Sokoto Plains
• D. Eastern Scarppland

Sugar Plantations in Africa are most highly developed in the lowlands of

• A. the Guinea Coast and Mozambique
• B. the mediterranean seaboard and the Guinea coast
• C. Mozambique and Natal
• D. Natal and Lower Nile

Soil texture is determined primarily by?

• A. profile horizons
• B. major components
• C. particle sizes
• D. nutrient status

The most important factor that probably explains the distribution of cultivation on the mapped area is

• A. Drainage
• B. Settlement
• C. Road
• D. Climate

The size of the individual grains of soil is referred to as the

• A. profile
• B. porosity
• C. density
• D. texture

The temperature of the environment changes with

• A. erosion
• B. altitude
• C. mass wasting
• D. longitude

A well will always contain water if its dug_________

• A. Below the Earth's basin
• B. To reach sand bearing water
• C. Above the water table
• D. Below the water table

Which of the following countries is one of the major producers of petroleum and also a net importer of the product?

• A. Algeria
• B. Mexico
• C. United States of America
• D. Nigeria

(a) Describe the solar system.

(b) Outline four characteristics each of the following planets:

(i) Pluto; (ii) Mercury