The process of meiosis in plants ensures the production of reproduction of reproductive cells with
- A. the same number of chromosomes like the parent plant
- B. half the number of chromosomes of the parent plant
- C. no chromosomes like the parent plant
- D. thrice the number of chromosomes of the parent plant
- E. twice the number of chromosomes of the parent plant
The disease which most attacks groundnut is called
- A. rosette
- B. mosaic
- C. soft rot
- D. powdery mildew
- E. brown rot
A forest established for watershed management will perform the following functions except
- A. reducing water pollution
- B. controlling fish population
- C. controlling erosion
- D. maintaining a steady stream flow
- E. reducing evaporation
In the establishment of pastures, it is best to
- A. plant only grasses
- B. plant only legumes
- C. plant a mixture of grasses and legumes
- D. let the natural grasses grow
- E. allow weeds to mix with the forage crops
Which of the following crops is a raw material for production of chocolate?
- A. kolanut
- B. coffee
- C. banana
- D. cocoa
- E. avocado pear
The units of inheritance which determine the various characteristics of crop are called
- A. chromosomes
- B. nuclei
- C. genes
- D. cytoplasm
- E. membranes
Which of the following is not an effect on man of the various preventive and control measures of diseases and pests of crops?
- A. air pollution
- B. water poisoning
- C. food contamination
- D. poor health
- E. poor utilization
The growing of both forest and agricultural crops on the same piece of land is termed
- A. mixed cropping
- B. mixed farming
- C. forestry
- D. taungya system
- E. poor reproductive ability
The desirable characteristics of forage crops include the following except
- A. palatability
- B. dependability
- C. high yield
- D. resistance to trampling
- E. poor reproductive ability
The distance between two successive yam mounds should be about
- A. 0.10 m
- B. 1.00 m
- C. 10.00 m
- D. 100.00 m
- E. 1000.00 m
The best tool(s) a farmer should use to measure out a large farm accurately include(s) the
- A. garden line and measuring tape
- B. measuring tape and ranging poles
- C. measuring tape only
- D. garden line only
- E. ranging poles and garden line
The most important limitation of agricultural mechanization is
- A. small holdings
- B. lack of technical know-how
- C. poor marketing system
- D. inadequate storage facilities
- E. pest attack
The instrument used to measure the relative humidity is
- A. thermometer
- B. anemometer
- C. hygrometer
- D. hydrometer
- E. rain gauge
Which of the following sources of farm power cannot be effectively used for processing agricultural products?
- A. animals
- B. electricity
- C. sun
- D. machines
- E. wind
The advantage of providing drainage ditches in farms is that it
- A. requires periodic clearing
- B. is inconvenient for farm mechanization
- C. is labour intensive
- D. is unsuitable for draining basement of farm buildings
- E. is easily adopted by samll scale farmers
Rhizobium supplies nitrogen to leguminous plants by
- A. changing some mineral salts to sulphate of ammonia
- B. incoporating urea into its body
- C. fixing atmospheric nitrogen
- D. decomposing plant remains
- E. increasing the PH value of the soil
The following are advantages of the sprinkler method of irrigation except
- A. rate of application of irrigation water can be controlled
- B. portable nature of many sprinkler system make them suitable for use
- C. the sprinkler system can be made automatic
- D. method can be where topography affects horrowing of land
- E. method may be difficult for local farmers to use
Slate is derived from
- A. schist
- B. sandstone
- C. shale
- D. gneiss
- E. quartzite
The function of soil micro-organisms include the following except
- A. decomposition of dead plant and animal remains
- B. recycling of nutrients
- C. causing plant or animal diesases
- D. living as parasites on crop plants
- E. filtration of soil water for plant use
Which of the following is not an effect of burning on the soil?
- A. increasing the organic matter in the soil
- B. increasing the soil nutrients
- C. increasing the acidity of the soil
- D. exposing the soil to erosion
- E. sterilization of the soil
Nitrogen is made available to plants in the form of nitrates through the process of
- A. deamination and nitrification
- B. ammonification and denitrification
- C. deamination and ammonification
- D. nitrification and dentrification
- E. nitrification and ammonification