The main advantage of the chain survey over the prismatic compass survey is that the former

• A. yields relatively more accurate results
• B. involves highly more portable equipment
• C. does not require a base map
• D. closes its boundaries with no correction

Rocks of the core of the earth are rich in

• A. iron and nickel
• B. silicon and magnesia
• C. iron and magnesia
• D. silica and nikel

In tropical deserts large diurnal ranges of temperature occur because of the

• A. absence of tradition
• B. scarcity of water
• C. prevalence of strong winds
• D. absence of cloud cover

Transhumance involves the movement of

• A. people from rural to urban areas
• B. migrant labour from source to receiving regions
• C. settlers from highlands to lowlands for farming
• D. cattle up and down mountains for pasture

An important mineral deposit in south Africa which has attracted a large number of white settler is

• A. Iron in Durban
• B. Copper in Cape Town
• C. Gold in Witwatersrand
• D. Aluminium in Johannessburg

Which of the following is not a problem facing transportation development in Tropical Africa?

• A. Climatic variation
• B. Inadequate capital
• C. Difficult terrain
• D. Poor planning

Which of the following elements of weather is matched with the wrong measuring instrument?

• A. humidity and barometer
• B. rainfall and rain guage
• C. sunshine and sundial
• D. windspeed and anemometer

An example of organically formed sedimentary rock is

• A. sandstone
• B. rock slit
• C. grit
• D. limestone

Which of the following features is of volcanic origin?

• A. Sill
• B. Zeugen
• C. Loess
• D. Gorge

Which of the following represents the first stage in the lumbering process?

• A. Trees are felled
• B. Platforms are built for buttress trees
• C. Particular species are identified
• D. Trees are cut into logs