Soils can become acidic as a result of the continuous application of
- A. single superphosphate
- B. sulphate of ammonia
- C. muriate of potash
- D. NPK 15: 15: 15
When compost is added to said, it
- A. reduces the activities of living organisms
- B. increases the porosity of the soil
- C. increases water-holding capacity of the soil
- D. decreases the soil acidity
The rock weathering process involving the equation; CaCO3 + H2CO3 → Ca(HCO3)2 is called
- A. carbonation
- B. hydration
- C. hydrolysis
- D. oxidation
Which of the following statements best describes sediment rocks?
- A. pre-existing rocks in which the original mineral has undergone change
- B. weathered rock transported by wind to other places
- C. molten magma which has cooled down and solified
- D. rocks formed from breaking deposition and re-cementation of pre-existing rocks
Marble is a metamorphic rock formed from
- A. limestone
- B. quartzite
- C. shale
- D. schist
Which of the following factors affects the onset of flowering in crops?
- A. Atmospheric pressure
- B. Wind
- C. Day length
- D. Rainfall
A socio-economic factor which affects the availability of land for agricultural use in West Africa is
- A. soil type
- B. population growth
- C. rainfall distribution
- D. working capital
Which of the following are advantages of the communal land ownership system? l. Every member of the community has a piece of land on which of farm.ll. Co-operative farming is possible under this system. III . Large scale farming is encouraged . IV Land can be used as a security for loans.
- A. l and ll only
- B. ll and lll only
- C. l and lll only
- D. lll and IV only
What action of government may be considered as granting of subsidies to farmers?
- A. Giving low interest loans to farmers
- B. Providing hire purchase services
- C. Supplying agrochemicals at reduced cost
- D. Providing free non-formal education to farmers
One of the problems facing agricultural development in West Africa is
- A. inadequate financing
- B. unavailability of productive land
- C. low income of consumers
- D. inadequacy of industries
To facilitate mechanical harvesting of cereals, it is better to
- A. make all of them disease-resistant
- B. ensure that they are free from pest attack
- C. ensure they all have uniform height
- D. make sure they are - maturing