JSS2 Third Term Agricultural Science Past Questions And Answers
JSS2 Third Term Agricultural Science questions with options and answers:
Question: Which of the following is an example of a cash crop?
A) Cassava
B) Sorghum
C) Cotton
D) Sweet potato
Answer: C) Cotton
Question: What is the purpose of crop rotation in preventing soil diseases?
A) Enhance soil fertility
B) Disrupt the life cycle of pathogens
C) Increase water retention
D) Promote weed growth
Answer: B) Disrupt the life cycle of pathogens
Question: Which soil horizon contains the most organic matter?
A) A horizon
B) B horizon
C) C horizon
D) O horizon
Answer: A) A horizon
Question: What is the role of nitrogen in the growth of plants?
A) Enhances leaf color
B) Promotes root development
C) Essential for protein synthesis
D) Increases water absorption
Answer: C) Essential for protein synthesis
Question: What is the term for the practice of planting different crops in alternating rows to maximize space and resources?
A) Monoculture
B) Intercropping
C) Crop rotation
D) Polyculture
Answer: B) Intercropping
Question: Which of the following is a source of organic matter for soil improvement?
A) Synthetic fertilizers
B) Pesticides
C) Green manure
D) Herbicides
Answer: C) Green manure
Question: What is the primary function of the reproductive organs in plants?
A) Photosynthesis
B) Absorption of water
C) Seed production and dispersal
D) Transpiration
Answer: C) Seed production and dispersal
Question: In agriculture, what does the term “perennial” mean?
A) Lasting for a short period
B) Flowering every year
C) Lasting for several years
D) Suitable for one season only
Answer: C) Lasting for several years
Question: What is the significance of phosphorus in plant nutrition?
A) Enhances fruit development
B) Essential for cell division and energy transfer
C) Increases water absorption
D) Controls pests
Answer: B) Essential for cell division and energy transfer
Question: Which of the following is a form of erosion caused by water?
A) Wind erosion
B) Sheet erosion
C) Glacier erosion
D) Chemical erosion
Answer: B) Sheet erosion
Question: What is the primary function of the stomata in plant leaves?
A) Support
B) Gas exchange (CO2 and O2)
C) Nutrient absorption
D) Water storage
Answer: B) Gas exchange (CO2 and O2)
Question: Which farming practice involves the cultivation of crops and raising of livestock on the same piece of land?
A) Monoculture
B) Aquaculture
C) Agroforestry
D) Mixed farming
Answer: D) Mixed farming
Question: What is the purpose of adding lime to acidic soils in agriculture?
A) Increase soil acidity
B) Enhance nutrient absorption
C) Decrease water retention
D) Control pests
Answer: B) Enhance nutrient absorption
Question: What is the term for the removal of unwanted plants from a crop field?
A) Harvesting
B) Pruning
C) Weeding
D) Irrigation
Answer: C) Weeding
Question: Which of the following is an example of a non-renewable resource used in agriculture?
A) Solar power
B) Fossil fuels
C) Wind energy
D) Biomass
Answer: B) Fossil fuels
Question: What is the main purpose of a windbreak in agriculture?
A) Increase wind speed
B) Prevent soil erosion and protect crops
C) Provide shade for crops
D) Enhance pollination
Answer: B) Prevent soil erosion and protect crops
Question: Which farming practice involves the cultivation of crops and fish together in a symbiotic environment?
A) Aquaponics
B) Hydroponics
C) Aeroponics
D) Aquaculture
Answer: A) Aquaponics
Question: What is the term for the practice of growing a single crop on a large scale?
A) Polyculture
B) Mixed cropping
C) Monoculture
D) Crop rotation
Answer: C) Monoculture
Question: Which of the following is a method of weed control in agriculture?
A) Fertilization
B) Mulching
C) Pesticide application
D) Pruning
Answer: C) Pesticide application
Question: What is the primary function of the roots in a plant?
A) Photosynthesis
B) Support
C) Absorption of water and nutrients
D) Reproduction
Answer: C) Absorption of water and nutrients.
