Trees are deciduous when they

• A. have throny barks and fleshy leaves
• B. are in pure stands having just one type of species C. generally shed their leaves during one season of the year D. do not shed their leaves at any season of the year
• C. generally shed their leaves during one season of the year
• D. do not shed their leaves at any season of the year

Which of the following is the cause of south-westerly and north-easterly directions of the winds in the northern tropics?

• A. The rotation of the earth
• B. The revolution of the earth
• C. The differences in air pressure
• D. The size of the landmass

One of the effects of rural-urban migration on the source region it?

• A. rural depopulation
• B. urban depopulation
• C. rural congestion
• D. urban congestion

Liberia, Malaysia and Indonesia are known for the production of?

• A. cocoa
• B. rubber
• C. coffee
• D. tea

One of these is not a part of the thermal plants in Nigeria

• A. Egbin
• B. Shiroro
• C. Ijora
• D. Afarn

Under which of the following vegetation types would you expect to find soils which have a B horizon rich in calcium carbonate?

• A. Temperature grassland
• B. Coniferous forest
• C. Tundra
• D. Tropical rain

The greatest advantage of road transport over other types of transportation is that it

• A. can convey bulky goods
• B. can link up two or more countries easily
• C. is more economical
• D. is flexible

which of the following is not important in defining soil

• A. color
• B. capillary
• C. permeability
• D. texture

Ranging poles are important in chain and prismatic compass surveys to determine?

• A. the adjustment to correct a closure error
• B. the total length of all offsets
• C. the length of the base line
• D. three points along a straight line

Highlight the relative contributions of roads and railways to national development in any country of your choice