Agricultural Science JAMB, WAEC, NECO AND NABTEB Official Past Questions

2962

Which of the following is not a method of controlling pests?

  • A. quarantine
  • B. crop rotation
  • C. fumigation
  • D. trapping
  • E. mulching
View Answer & Discuss WAEC 1988
2963

The plant-a-tree-campaign of the Federal Government of Nigeria is a way of encouraging forest

  • A. regulation
  • B. exploration
  • C. exploitation
  • D. integration
  • E. regeneration
View Answer & Discuss WAEC 1988
2964

Which of the following plants is not classified as forage grass?

  • A. giant star
  • B. guinea grass
  • C. elepant grass
  • D. gamba grass
  • E. stylo
View Answer & Discuss WAEC 1988
2965

A small plot of land where intensive cultivation is practiced to produce vegetables is generally referred to as

  • A. an orchad
  • B. a plantation
  • C. a nursery
  • D. a garden
  • E. a pasture
View Answer & Discuss WAEC 1988
2966

An example of fungal disease of stored grains is

  • A. rosette
  • B. wilt
  • C. soft rot
  • D. damping off
  • E. mould
View Answer & Discuss WAEC 1988
2967

The common surveying equipment for farmland include the following except

  • A. ranging pole
  • B. prismatic compass
  • C. measuring tape
  • D. gunter's chain
  • E. spade
View Answer & Discuss WAEC 1988
2968

Which of the following cannot be used to rub the metal parts of farm tools before storage?

  • A. grease
  • B. plam oil
  • C. water
  • D. petroleum jelly
  • E. spent engine oil
View Answer & Discuss WAEC 1988
2969

Which of the following implements will be used for the next farm operation after clearing a new farmland?

  • A. harrow
  • B. ridger
  • C. cultivator
  • D. planter
  • E. plough
View Answer & Discuss WAEC 1988
2970

The type of energy obtained from the sun for agricultural uses is known as

  • A. potential energy
  • B. mechanical energy
  • C. nuclear energy
  • D. solar energy
  • E. kinetic energy
View Answer & Discuss WAEC 1988
2971

The relationship between the microorganisms and plant in the nitrogen cycle is best described as

  • A. parasitism
  • B. commensalism
  • C. competition
  • D. symbiosis
  • E. saprophytism
View Answer & Discuss WAEC 1988
2972

The type of rocks formed from the molten magma is known as

  • A. sedimentary
  • B. igneous
  • C. metamorphic
  • D. schist
  • E. sandstone
View Answer & Discuss WAEC 1988
2973

The earthworm is important to the farmer because it

  • A. improves soil structure
  • B. improves soil texture
  • C. destroys soil pathogens
  • D. adds nutrients to the soil
  • E. prevents soil erosion
View Answer & Discuss WAEC 1988
2974

A farmer cultivating leafy vegetables will require fertilizers with a relatively high content of

  • A. calcium
  • B. magnesium
  • C. potasssium
  • D. nitrogen
  • E. phosphorus
View Answer & Discuss WAEC 1988
2975

Which of the following types of soil contains particles of diameter between 0.02 mm and 2.o mm?

  • A. sand
  • B. silt
  • C. gravel
  • D. clay
  • E. stone
View Answer & Discuss WAEC 1988
2976

Which of the following is not associated with surface irrigation?

  • A. natural flooding
  • B. check flooding
  • C. sprinkler irrigation
  • D. mole drains
  • E. tiles
View Answer & Discuss WAEC 1988
2977

which of the following farm practices can prevent excessive evaporation from soil surfaces?

  • A. liming
  • B. mulching
  • C. weeding
  • D. harrowing
  • E. ploughing
View Answer & Discuss WAEC 1988
2978

When leaves of crop plants show brownish coloration from the tips of the mid-ribs backward, they are showing deficiency symptom of

  • A. magnesium
  • B. zinc
  • C. nitrogen
  • D. copper
  • E. phosphorus
View Answer & Discuss WAEC 1988
2979

In which layer of the soil profile does most biological activity occur?

  • A. parent material
  • B. D-horizon
  • C. C-horizon
  • D. B-horizon
  • E. A-horizon
View Answer & Discuss WAEC 1988
2980

Granite is

  • A. a sedimentary rock
  • B. a wealtered rock
  • C. mentamorphic rock
  • D. an igneous rock
  • E. a plutonic rock
View Answer & Discuss WAEC 1988
2981

Which of the following factors influence agricultural production is biotic factor?

  • A. parasite
  • B. soil PH
  • C. topography
  • D. soil texture
  • E. temperature
View Answer & Discuss WAEC 1988
2982

The alternate heating and cooling of rocks result in

  • A. sublimation
  • B. volatilization
  • C. fragmentation
  • D. solidification
  • E. sedimentation
View Answer & Discuss WAEC 1988