Coastal erosion can be prevented by

• A. increasing the volume of water in the ocean
• B. increasing the volume of water around the coast
• C. the stabilization of sandy and muddy beaches by coastal vegetation
• D. the removal of sandy and muddy beaches along the coast

Rocks which contain metals in concentrations high enough to be economically profitable to extract and refine are referred to as?

• A. terrestrial resources
• B. ores
• C. ferrous deposit
• D. minerals

Loamy soils are better for agriculture than other soil types because they

• A. are black in colour
• B. retain air,moisture and humus
• C. are rich in mineral nutrients
• D. are rich in humus only

Deposition of fine grained sand carried over long distance by wind is known as

• A. Chernozem
• B. Laterite
• C. Loess
• D. Podzols

The major difference between the tropical rain-forest and savanna vegetation

• A. and the rain-forest never occur on the same continent
• B. is natural while the rain-forest is derived
• C. grows in layers while the rain-forest does not
• D. has less spcies of plants while the rain-forest has diverse species of plants

the angular distance of a point on the earth’s surface measured in degrees from the Centre of the earth is known as

• A. orbit
• B. latitude
• C. axis
• D. longitude

A major problem associated with lumbering in tropical as compared with temperate forests is that the?

• A. low density of rivers make log transportation costly
• B. timber trees do not grow in pure stands
• C. hardwoods are not in great demand
• D. terrain is swampy

The greatest industries areas of the world are?

• A. Africa and the Caribbean
• B. the Ruhr industrial region and South Africa
• C. Western Europe and the United States of America
• D. Japan and Australia

The rock which has the capacity to retain underground water is?

• A. impermeable
• B. crystalline
• C. compact
• D. permeable

The Sudd region has been highly valued for its

• A. large scale irrigation
• B. mineral deposits
• C. fishing industry
• D. biodiversity