Jss2 Third term Agricultural science past questions and answers

Question: What is the primary purpose of a greenhouse gas in a controlled environment?

A) Control temperature

B) Increase humidity

C) Enhance photosynthesis

D) Trap heat

Answer: A) Control temperature

 

Question: Which of the following is a biennial crop?

 

A) Carrot

B) Onion

C) Lettuce

D) Tomato

Answer: A) Carrot

 

Question: What is the importance of cover crops in agriculture?

 

A) Increase soil erosion

B) Suppress weed growth

C) Attract harmful insects

D) Reduce soil fertility

Answer: B) Suppress weed growth

 

Question: What is the function of the stamen in a flower?

 

A) Produce seeds

B) Attract pollinators

C) Support the flower

D) Receive pollen

Answer: A) Produce seeds

 

Question: In fish farming, what does the term “fingerling” refer to?

 

A) Adult fish

B) Fish eggs

C) Young fish

D) Fish feed

Answer: C) Young fish

 

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

 

A) Cultivation

B) Threshing

C) Weeding

D) Pruning

Answer: C) Weeding

 

Question: Which of the following is a method of water conservation in agriculture?

 

A) Flood irrigation

B) Drip irrigation

C) Surface runoff

D) Overhead irrigation

Answer: B) Drip irrigation

 

Question: What is the purpose of a silo in agriculture?

 

A) Store water

B) Preserve grains

C) Raise poultry

D) Cultivate vegetables

Answer: B) Preserve grains

 

Question: What is the role of mycorrhizal fungi in plant growth?

 

A) Fix nitrogen

B) Conduct photosynthesis

C) Aid in nutrient absorption

D) Produce oxygen

Answer: C) Aid in nutrient absorption

 

Question: Which of the following is a method of pest control that involves introducing natural predators to control pest populations?

 

A) Chemical spraying

B) Biological control

C) Crop rotation

D) Mulching

Answer: B) Biological control

 

Question: What is the main purpose of a farm tractor in modern agriculture?

 

A) Planting seeds

B) Harvesting crops

C) Soil cultivation and transportation

D) Irrigating fields

Answer: C) Soil cultivation and transportation

 

Question: Which soil horizon is commonly known as the “parent material”?

 

A) Topsoil

B) Subsoil

C) Bedrock

D) Humus

Answer: C) Bedrock

 

Question: What is the significance of crop diversity in sustainable agriculture?

 

A) Increases susceptibility to diseases

B) Enhances soil erosion

C) Improves resilience and reduces pest pressure

D) Requires more water

Answer: C) Improves resilience and reduces pest pressure

 

Question: Which of the following is a method of organic waste recycling in agriculture?

 

A) Incineration

B) Composting

C) Landfill disposal

D) Chemical treatment

Answer: B) Composting

 

Question: What is the purpose of pruning in horticulture?

 

A) Enhance soil fertility

B) Control pests

C) Control plant size and shape

D) Increase water absorption

Answer: C) Control plant size and shape

 

Question: In animal husbandry, what does the term “crossbreeding” involve?

 

A) Breeding within the same breed

B) Breeding different species

C) Breeding animals from different regions

D) Breeding animals with similar traits

Answer: C) Breeding animals from different regions

 

Question: What is the primary function of the fruit in a flowering plant?

 

A) Attract pollinators

B) Produce seeds

C) Support the plant

D) Conduct photosynthesis

Answer: B) Produce seeds

 

Question: What is the term for the process of preserving food by heating it to a high temperature to destroy bacteria and enzymes?

 

A) Fermentation

B) Canning

C) Dehydration

D) Pickling

Answer: B) Canning

 

Question: Which of the following is a leguminous cover crop commonly used in crop rotation?

 

A) Alfalfa

B) Sunflower

C) Corn

D) Sorghum

Answer: A) Alfalfa

 

Question: What is the main function of the chloroplasts in plant ce

lls?

 

A) Store water

B) Conduct photosynthesis

C) Provide structural support

D) Absorb nutrients

Answer: B) Conduct photosynthesis