JAMB Agricultural Science Past Questions and Answers

 

Agricultural Science questions with answers:

 

Question: What is the term for the process of removing weeds from a cultivated area?

 

A. Tilling

B. Weeding

C. Pruning

D. Mulching

Answer: B. Weeding

 

Question: Which of the following is a greenhouse gas released during the process of rice cultivation in flooded fields?

 

A. Oxygen

B. Carbon dioxide

C. Methane

D. Nitrous oxide

Answer: C. Methane

 

Question: What is the primary purpose of using cover crops in agriculture?

 

A. Increase crop yield

B. Prevent soil erosion

C. Attract beneficial insects

D. Enhance the flavor of fruits

Answer: B. Prevent soil erosion

 

Question: In animal husbandry, what is the term for the process of mating animals of the same breed but not directly related?

 

A. Inbreeding

B. Outbreeding

C. Crossbreeding

D. Hybridization

Answer: B. Outbreeding

 

Question: Which farming system involves the simultaneous cultivation of different crops in the same field?

 

A. Monoculture

B. Polyculture

C. Mixed cropping

D. Agroforestry

Answer: C. Mixed cropping

 

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

 

A. Planting seeds

B. Harvesting crops

C. Breaking and turning over soil

D. Irrigating fields

Answer: C. Breaking and turning over soil

 

Question: Which agricultural practice involves rotating livestock between different pasture areas to optimize grazing?

 

A. Silvopasture

B. Nomadic herding

C. Intensive grazing

D. Free-range farming

Answer: C. Intensive grazing

 

Question: What is the term for the process of artificially controlling the breeding of animals or plants to produce desired traits?

 

A. Genetic modification

B. Selective breeding

C. Hybridization

D. Mutation breeding

Answer: B. Selective breeding

 

Question: Which of the following is a root crop?

 

A. Tomato

B. Carrot

C. Pepper

D. Cucumber

Answer: B. Carrot

 

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

 

A. Increase acidity

B. Improve water retention

C. Enhance fertility and reduce acidity

D. Provide nutrients to plants

Answer: C. Enhance fertility and reduce acidity

 

Question: In animal husbandry, what is the term for the process of providing food to livestock in confined spaces?

 

A. Free-range feeding

B. Grazing

C. Intensive feeding

D. Pasture feeding

Answer: C. Intensive feeding

 

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

 

A. Wheat

B. Barley

C. Rice

D. Maize

Answer: D. Maize

 

Question: What is the primary purpose of using nitrogen-based fertilizers in crop cultivation?

 

A. Enhance root growth

B. Increase leaf size

C. Improve flower color

D. Boost overall plant growth and development

Answer: D. Boost overall plant growth and development

 

Question: In aquaculture, what is the term for the process of cultivating and harvesting both freshwater and saltwater organisms?

 

A. Mariculture

B. Hydroponics

C. Aquaponics

D. Polyculture

Answer: A. Mariculture

 

Question: Which of the following is a primary source of protein in animal feeds?

 

A. Starch

B. Cellulose

C. Linoleic acid

D. Soybean meal

Answer: D. Soybean meal

 

Question: What is the term for the process of controlled burning in agriculture to clear fields of debris and promote new growth?

 

A. Slash-and-burn

B. Tilling

C. Mulching

D. Irrigation

Answer: A. Slash-and-burn.