SS3 first term Agricultural science past questions and answers

SS3 first term Agricultural science past questions and answers

Here are 20 SS3 Agricultural Science questions with options and answers:

Question: What is the primary function of the chlorophyll in plants?

A. Absorption of water

B. Absorption of sunlight

C. Absorption of nutrients

D. Absorption of carbon dioxide

Answer: B. Absorption of sunlight

Question: Which of the following is a leguminous crop?

A. Maize

B. Rice

C. Soybean

D. Wheat

Answer: C. Soybean

Question: What is the term for the removal of unwanted plants from a crop field?

A. Harvesting

B. Plowing

C. Weeding

D. Pruning

Answer: C. Weeding

Question: Which soil type retains water for a more extended period?

A. Sandy soil

B. Loamy soil

C. Clayey soil

D. Peaty soil

Answer: C. Clayey soil

Question: What is the primary purpose of nitrogen-fixing bacteria in the root nodules of leguminous plants?

A. Enhance root growth

B. Fix atmospheric nitrogen

C. Aid in water absorption

D. Increase photosynthesis

Answer: B. Fix atmospheric nitrogen

Question: The process of converting atmospheric nitrogen into a usable form for plants is called:

A. Nitrification

B. Denitrification

C. Nitrogen fixation

D. Nitrogen assimilation

Answer: C. Nitrogen fixation

Question: Which of the following is a greenhouse gas released during the decomposition of organic matter in the soil?

A. Oxygen

B. Methane

C. Carbon dioxide

D. Nitrous oxide

Answer: D. Nitrous oxide

Question: What is the primary function of herbicides in agriculture?

A. Fertilization

B. Pest control

C. Weed control

D. Disease prevention

Answer: C. Weed control

Question: Which of the following is a macronutrient essential for plant growth?

A. Iron

B. Zinc

C. Phosphorus

D. Manganese

Answer: C. Phosphorus

Question: What is the term for the practice of rotating crops in a specific order to improve soil fertility?

A. Monoculture

B. Polyculture

C. Crop rotation

D. Agroforestry

Answer: C. Crop rotation

Question: The process of preserving green fodder by partially drying and fermenting it in a stack is known as:

A. Haymaking

B. Silage making

C. Ensiling

D. Chaffing

Answer: C. Ensiling

Question: Which of the following is a biological method of pest control?

A. Chemical pesticides

B. Crop rotation

C. Integrated pest management (IPM)

D. Synthetic fertilizers

Answer: C. Integrated pest management (IPM)

Question: What is the purpose of plowing in agriculture?

A. Seed planting

B. Weed control

C. Soil aeration

D. Irrigation

Answer: C. Soil aeration

Question: Which of the following is a warm-season vegetable crop?

A. Cabbage

B. Carrot

C. Tomato

D. Spinach

Answer: C. Tomato

Question: What is the function of mycorrhizal fungi in the root system of plants?

A. Photosynthesis

B. Nitrogen fixation

C. Absorption of water

D. Nutrient absorption

Answer: D. Nutrient absorption

Question: The process of separating grains from harvested crops is known as:

A. Harvesting

B. Threshing

C. Winnowing

D. Sowing

Answer: B. Threshing

Question: Which of the following is a cover crop used for improving soil fertility?

A. Barley

B. Sorghum

C. Clover

D. Millet

Answer: C. Clover

Question: What is the purpose of adding lime to soil in agriculture?

A. Increase acidity

B. Improve drainage

C. Decrease fertility

D. Correct soil acidity

Answer: D. Correct soil acidity

Question: Which of the following is a primary factor affecting the growth of plants?

A. Atmospheric pressure

B. Light intensity

C. Wind speed

D. Humidity

Answer: B. Light intensity

Question: The process of exposing harvested crops to the sun to dry is called:

A. Harvesting

B. Curing

C. Drying

D. Threshing

Answer: C. Drying