Agricultural science mock exam questions and answers for Jss3

Agricultural science mock exam questions and answers for Jss3

Here are 20 agricultural science JSS3 mock questions with options and answers:

What is the primary function of leaves in a plant?

a) Photosynthesis

b) Water absorption

c) Root support

d) Flower production

Answer: a) Photosynthesis

Which of the following is not a primary macronutrient for plants?

a) Nitrogen

b) Phosphorus

c) Calcium

d) Potassium

Answer: c) Calcium

What is the process of breaking down complex organic materials into simpler substances by microorganisms called?

a) Fermentation

b) Photosynthesis

c) Respiration

d) Decomposition

Answer: d) Decomposition

Which tool is commonly used to measure soil pH?

a) Thermometer

b) Hydrometer

c) pH meter

d) Barometer

Answer: c) pH meter

Which crop is a legume known for its ability to fix nitrogen in the soil?

a) Wheat

b) Corn

c) Soybean

d) Rice

Answer: c) Soybean

What is the main purpose of crop rotation in agriculture?

a) Pest control

b) Weed management

c) Soil fertility improvement

d) Irrigation planning

Answer: c) Soil fertility improvement

Which farming practice involves the cultivation of both crops and livestock on the same farm?

a) Monoculture

b) Agribusiness

c) Mixed farming

d) Organic farming

Answer: c) Mixed farming

What is the role of herbicides in agriculture?

a) Fertilizing the soil

b) Controlling weeds

c) Protecting against diseases

d) Enhancing crop growth

Answer: b) Controlling weeds

What is the term for the removal of unwanted plant parts to encourage better growth and yield?

a) Irrigation

b) Fertilization

c) Pruning

d) Mulching

Answer: c) Pruning

Which of the following is not a greenhouse gas associated with livestock production?

a) Carbon dioxide (CO2)

b) Methane (CH4)

c) Nitrous oxide (N2O)

d) Oxygen (O2)

Answer: d) Oxygen (O2)

What is the process of converting milk into various dairy products like butter and cheese called?

a) Fermentation

b) Homogenization

c) Pasteurization

d) Dairy processing

Answer: d) Dairy processing

In aquaculture, what is the term for the controlled cultivation of aquatic plants and animals in a confined environment?

a) Hydroponics

b) Mariculture

c) Aquaponics

d) Vermiculture

Answer: b) Mariculture

Which of the following is a parasitic disease that affects cattle?

a) Malaria

b) Tetanus

c) Foot-and-mouth disease

d) Diabetes

Answer: c) Foot-and-mouth disease

What is the primary function of a combine harvester in agriculture?

a) Planting seeds

b) Harvesting crops

c) Irrigating fields

d) Soil testing

Answer: b) Harvesting crops

Which type of soil has the smallest particles and retains water and nutrients well?

a) Sandy soil

b) Clay soil

c) Loam soil

d) Silt soil

Answer: b) Clay soil

What is the term for the process of turning organic matter into compost to improve soil fertility?

a) Plowing

b) Cultivation

c) Mulching

d) Composting

Answer: d) Composting

Which of the following is a non-renewable resource in agriculture?

a) Sunlight

b) Water

c) Fossil fuels

d) Air

Answer: c) Fossil fuels

What is the main purpose of a seed drill in farming?

a) Harvesting crops

b) Sowing seeds

c) Applying fertilizers

d) Controlling pests

Answer: b) Sowing seeds

Which disease is caused by a deficiency of Vitamin C in livestock, especially in guinea pigs?

a) Scurvy

b) Rabies

c) Rickets

d) Tetanus

Answer: a) Scurvy

What is the term for the process of protecting crops from damage by covering them with a net or mesh?

a) Tilling

b) Netting

c) Mulching

d) Pollination

Answer: b) Netting