Which of the following factors does not affect the distribution of pasture grasses?
- A. wind
- B. temperature
- C. soil
- D. pests
Some cassava tubers are poisonous to non-ruminant because they contain
- A. hydrochloric acid
- B. hydrocyanic acid
- C. sodium chloride
- D. sodium hydroxide
Transplanting is best carried out in the evening because
- A. it allows for greater plant respiration
- B. roots show positive geotropism
- C. moisture losses are low during cold waether
- D. plnts grow faster in the dark
A crop which is usually propagated sexually is
- A. banana
- B. pineapple
- C. cowpea
- D. ginger
Which of the following reasons explain why fertilizers are added to soils?
- A. prevention of erosion
- B. increasing the organic matter content
- C. increasing the water retention capacity
- D. increasing the nutrient level
The by-product in plant photosynthesis is
- A. carbondioxide
- B. carbohydrate
- C. hydrogen
- D. oxygen
A prolonged wet season at the early stage of growth in cotton will lead to
- A. good vegetative growth and high yield of lint
- B. tall plant with few bolls
- C. premature dropping of leaves
- D. waterlogged soil which increases availability of soil nutrients
Farm mechanization does not
- A. involve the use of motorized equipment
- B. require much capital
- C. lead to unemployment
- D. involve the use of only heavy machinery
Calculate the area of a rectangular vegetable garden measuring 100m by 26m in hectares.
- A. 0.250
- B. 0.200
- C. 0.125
- D. 0.004
Which of the following types of survey reveals the physical features of farmlands?
- A. soil survey
- B. topographical survey
- C. chain survey
- D. compass survey
A decorticator is useful in the processing of
- A. maize
- B. cotton
- C. cocoa
- D. groundnut
Energy in fossil materials may be harnessed as
- A. water energy
- B. wind energy
- C. electrical energy
- D. fuel energy
Drainage refers to
- A. removal of excess water from the soil
- B. removal of nutrients from the soil
- C. addition of water to the soil
- D. protection of soil from erosion
The appropriate irrigation method for upland rice field is
- A. sprinkler
- B. drip
- C. flooding
- D. underground
One importance of cover crops is that they
- A. provide shade for crops
- B. protect crops from pests
- C. increase soil acidity
- D. suppress weed growth
Which of the following materials can be applied to the soil in order to correct yellowing of leaves?
- A. lime
- B. urea
- C. gypsum
- D. bone meal
Under which of the following conditions will organic matter in the soil decompose fastest?
- A. optimum pH
- B. low temperature
- C. anaerobic conditions
- D. waterlogged condition
Clay particles hold cations because they
- A. are negatively charged
- B. become hardened when dry
- C. are very small in size
- D. have definite shapes
Soils in forest areas would normally have
- A. low moisture content
- B. high proportion of sand
- C. high proportion of humus
- D. low microbial activity
The most active agent of physical weathering in arid regions is
- A. wind
- B. water
- C. temperature
- D. ice
The first vegetation zone which runs across the coast of most West African countries is the
- A. derived savanna
- B. mangrove forest
- C. guinea savanna
- D. rain forest