JSS2 First Term Agricultural Science Past Questions And Answers

 

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

 

A) Photosynthesis

B) Absorption of water and nutrients

C) Reproduction

D) Support

Answer: B) Absorption of water and nutrients

 

Question: Which farming practice involves the cultivation of crops in water-saturated conditions?

 

A) Aquaculture

B) Horticulture

C) Hydroponics

D) Pisciculture

Answer: A) Aquaculture

 

Question: What is the importance of nitrogen-fixing bacteria in agriculture?

 

A) Enhance soil structure

B) Increase soil acidity

C) Convert atmospheric nitrogen into a usable form for plants

D) Control pests

Answer: C) Convert atmospheric nitrogen into a usable form for plants

 

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

 

A) Wheat

B) Barley

C) Maize

D) Oats

Answer: C) Maize

 

Question: What is the purpose of crop rotation in agriculture?

 

A) Increase water retention in the soil

B) Enhance soil fertility and reduce pests

C) Control erosion

D) Speed up plant growth

Answer: B) Enhance soil fertility and reduce pests

 

Question: Which tool is commonly used for digging and turning soil in agriculture?

 

A) Hoe

B) Rake

C) Shovel

D) Pruner

Answer: A) Hoe

 

Question: What is the main function of the chloroplast in plant cells?

 

A) Storage of water

B) Photosynthesis

C) Cell support

D) Nutrient absorption

Answer: B) Photosynthesis

 

Question: Which of the following is a method of soil conservation?

 

A) Overgrazing

B) Deforestation

C) Terracing

D) Monoculture

Answer: C) Terracing

 

Question: What is the role of bees in agriculture?

 

A) Soil aeration

B) Pollination of crops

C) Pest control

D) Nitrogen fixation

Answer: B) Pollination of crops

 

Question: Which farming practice involves the cultivation of fruits, vegetables, and ornamental plants?

 

A) Aquaponics

B) Apiculture

C) Horticulture

D) Floriculture

Answer: C) Horticulture

 

Question: What is the function of the pesticide in agriculture?

 

A) Enhance plant growth

B) Control weeds

C) Kill or repel pests

D) Improve soil fertility

Answer: C) Kill or repel pests

 

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

 

A) Protect plants from frost

B) Increase carbon dioxide levels

C) Enhance rainfall

D) Reduce sunlight exposure

Answer: A) Protect plants from frost

 

Question: Which of the following is a renewable source of energy used in agriculture?

 

A) Coal

B) Solar power

C) Natural gas

D) Nuclear power

Answer: B) Solar power

 

Question: What is the primary source of energy for photosynthesis in plants?

 

A) Wind

B) Sunlight

C) Geothermal energy

D) Biomass

Answer: B) Sunlight

 

Question: Which part of a plant is responsible for the transport of water and nutrients?

 

A) Stomata

B) Xylem

C) Phloem

D) Epidermis

Answer: B) Xylem

 

Question: What is the importance of crop diversity in agriculture?

 

A) Reduce biodiversity

B) Increase vulnerability to pests and diseases

C) Enhance resilience and sustainability

D) Accelerate soil erosion

Answer: C) Enhance resilience and sustainability

 

Question: Which type of soil has the smallest particles and retains water most effectively?

 

A) Sandy soil

B) Clay soil

C) Loamy soil

D) Silt soil

Answer: B) Clay soil

 

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

 

A) Harvesting crops

B) Breaking and turning soil

C) Watering plants

D) Controlling weeds

Answer: B) Breaking and turning soil

 

Question: In which season do deciduous trees shed their leaves?

 

A) Winter

B) Spring

C) Summer

D) Autumn

Answer: D) Autumn

 

Question: What is the primary fun

ction of the flower in a plant?

 

A) Photosynthesis

B) Reproduction

C) Nutrient absorption

D) Water storage

Answer: B) Reproduction.