Jss1 third term Agricultural Science past questions and answers

Question: Which of the following is a method of vegetative propagation in plants?

a) Seed germination

b) Grafting

c) Pollination

d) Fertilization

 

Answer: b) Grafting

 

Question: What is the primary purpose of crop residues in agriculture?

 

a) Enhancing soil fertility

b) Serving as food for livestock

c) Controlling pests

d) Attracting pollinators

 

Answer: a) Enhancing soil fertility

 

Question: Which type of soil is well-draining and often found in arid regions?

 

a) Sandy soil

b) Clay soil

c) Loamy soil

d) Peaty soil

 

Answer: a) Sandy soil

 

Question: What is the function of the turgor pressure in plant cells?

 

a) Facilitating gas exchange

b) Providing structural support

c) Absorbing sunlight

d) Attracting pollinators

 

Answer: b) Providing structural support

 

Question: In agriculture, what does the term “drip irrigation” refer to?

 

a) Flooding fields with water

b) Sprinkling water from above

c) Providing water directly to the base of plants

d) Collecting rainwater for irrigation

 

Answer: c) Providing water directly to the base of plants

 

Question: What is the purpose of a plough in farming?

 

a) Controlling pests

b) Harvesting crops

c) Turning and loosening the soil

d) Seeding

 

Answer: c) Turning and loosening the soil

 

Question: Which of the following is a nitrogen-fixing plant commonly used in crop rotation?

 

a) Corn

b) Alfalfa

c) Wheat

d) Rice

 

Answer: b) Alfalfa

 

Question: What is the significance of the term “organic matter” in soil?

 

a) Improving soil structure and fertility

b) Increasing soil acidity

c) Facilitating water absorption

d) Preventing soil erosion

 

Answer: a) Improving soil structure and fertility

 

Question: Which of the following is a warm-season grass commonly used as fodder for livestock?

 

a) Wheat

b) Barley

c) Bermuda grass

d) Ryegrass

 

Answer: c) Bermuda grass

 

Question: What is the primary function of the cotyledon in a seed?

 

a) Absorbing water

b) Providing energy for germination

c) Storing nutrients

d) Facilitating gas exchange

 

Answer: b) Providing energy for germination

 

Question: What is the term for the practice of growing different crops in a planned sequence on the same piece of land?

 

a) Monoculture

b) Polyculture

c) Crop rotation

d) Agroforestry

 

Answer: c) Crop rotation

 

Question: Which of the following is an example of a perennial flowering plant?

 

a) Marigold

b) Petunia

c) Rose

d) Sunflower

 

Answer: c) Rose

 

Question: What is the primary purpose of the tiller in agriculture?

 

a) Harvesting crops

b) Turning and loosening the soil

c) Applying fertilizer

d) Pruning plants

 

Answer: b) Turning and loosening the soil

 

Question: Which gas is released by plants during the process of transpiration?

 

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Water vapor

 

Answer: d) Water vapor

 

Question: What is the term for the practice of cultivating crops and raising livestock in the same farming system?

 

a) Monoculture

b) Polyculture

c) Aquaponics

d) Horticulture

 

Answer: c) Aquaponics

 

Question: Which of the following is an example of a root tuber?

 

a) Carrot

b) Potato

c) Onion

d) Radish

 

Answer: b) Potato

 

Question: What is the purpose of cover cropping in agriculture?

 

a) Providing shade to crops

b) Controlling pests

c) Improving soil fertility and structure

d) Enhancing water absorption

 

Answer: c) Improving soil fertility and structure

 

Question: In the context of agriculture, what is meant by the term “vermicomposting”?

 

a) Composting with earthworms

b) Mulching with leaves

c) Irrigating with worm tea

d) Harvesting honey from bees

 

Answer: a) Composting with earthworms

 

Question: What is the primary purpose of the nitrogen cycle in soil?

 

a) Facilitating water absorption

b) Preventing soil erosion

c) Recycling and making nitrogen available to plants

d) Controlling pests

 

Answer: c) Recycling and making nitrogen available to plants

 

Question: Which of the following is a common practice in organic farming for pest control?

 

a) Synthetic chemical pesticides

b) Crop rotation

c) Genetic modification

d) Ionizing radiation

 

Answer: b) Crop rotation