JSS3 Second Term Agricultural Science Past Questions And Answers
Second Term Agricultural Science questions with options and answers:
What is the process by which water is lost from plant leaves to the atmosphere?
a) Transpiration
b) Photosynthesis
c) Respiration
d) Absorption
Answer: a) Transpiration
Which agricultural practice involves the breeding and raising of fish in controlled environments?
a) Aquaponics
b) Sericulture
c) Apiculture
d) Pisciculture
Answer: d) Pisciculture
What is the primary function of the stem in plants?
a) Food storage
b) Photosynthesis
c) Water absorption
d) Support and transport of nutrients
Answer: d) Support and transport of nutrients
In crop rotation, what is the purpose of planting leguminous crops in a rotation sequence?
a) Weed control
b) Nitrogen fixation
c) Pest management
d) Soil aeration
Answer: b) Nitrogen fixation
Which of the following is a cool-season crop?
a) Tomato
b) Potato
c) Cotton
d) Rice
Answer: b) Potato
What is the primary purpose of using green manure in agriculture?
a) Pest control
b) Soil fertility improvement
c) Weed suppression
d) Water conservation
Answer: b) Soil fertility improvement
What is the role of a combine harvester in modern agriculture?
a) Irrigation
b) Harvesting and threshing crops
c) Plowing
d) Pest control
Answer: b) Harvesting and threshing crops
Which of the following is a micronutrient required by plants for healthy growth?
a) Phosphorus
b) Magnesium
c) Boron
d) Potassium
Answer: c) Boron
What is the primary function of the fruit in a flowering plant?
a) Seed production
b) Photosynthesis
c) Water absorption
d) Transpiration
Answer: a) Seed production
In which farming system is livestock reared mainly for milk and other dairy products?
a) Poultry farming
b) Apiculture
c) Dairy farming
d) Sericulture
Answer: c) Dairy farming
What is the purpose of adding lime to acidic soil in agriculture?
a) Pest control
b) Weed suppression
c) Soil pH adjustment
d) Nitrogen fixation
Answer: c) Soil pH adjustment
Which of the following is a method of soil conservation that involves planting trees along the edges of fields?
a) Contour plowing
b) Agroforestry
c) Strip cropping
d) Terrace farming
Answer: b) Agroforestry
What is the primary function of the reproductive organs in plants?
a) Water absorption
b) Seed production
c) Transpiration
d) Photosynthesis
Answer: b) Seed production
Which type of farming involves the cultivation of crops without soil, using nutrient-rich water solutions?
a) Organic farming
b) Hydroponics
c) Aquaponics
d) Mixed farming
Answer: b) Hydroponics
What is the importance of crop diversification in agriculture?
a) Increased soil erosion
b) Enhanced pest resistance
c) Monoculture promotion
d) Improved resilience against pests and diseases
Answer: d) Improved resilience against pests and diseases
What is the primary function of mycorrhizal fungi in the soil?
a) Water absorption
b) Pest control
c) Nutrient absorption for plants
d) Soil aeration
Answer: c) Nutrient absorption for plants
Which farming method involves growing crops in water without soil, using nutrient solutions?
a) Aquaculture
b) Hydroponics
c) Pisciculture
d) Apiculture
Answer: b) Hydroponics
What is the purpose of using cover crops in agriculture?
a) Pest control
b) Weed suppression
c) Soil erosion prevention
d) Nitrogen fixation
Answer: c) Soil erosion prevention
Which of the following is a method of pest control that involves introducing natural predators of pests?
a) Chemical control
b) Biological control
c) Cultural control
d) Mechanical control
Answer: b) Biological control
What is the significance of crop residues in agriculture?
a) Pest control
b) Soil fertility improvement
c) Water c
onservation
d) Seed production
Answer: b) Soil fertility improvement.
