Agricultural science NABTEB exam past questions and answers

Agricultural science NABTEB exam past questions and answers

Here they are;

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

a) Absorption of water

b) Photosynthesis

c) Root development

d) Pest resistance

Answer: b) Photosynthesis

Question: Which soil type retains water the best?

a) Sandy soil

b) Loamy soil

c) Clay soil

d) Silt soil

Answer: b) Loamy soil

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

a) Enhancing soil pH

b) Decomposing organic matter

c) Converting nitrogen into a usable form for plants

d) Controlling pests

Answer: c) Converting nitrogen into a usable form for plants

Question: What is the ideal pH range for most crops?

a) 4.0-5.5

b) 6.0-7.5

c) 8.0-9.5

d) 10.0-11.5

Answer: b) 6.0-7.5

Question: Which of the following is a greenhouse gas released during rice cultivation?

a) Oxygen

b) Methane

c) Carbon dioxide

d) Nitrous oxide

Answer: b) Methane

Question: What is crop rotation used for in agriculture?

a) Improving soil fertility

b) Preventing erosion

c) Enhancing water absorption

d) Increasing sunlight exposure

Answer: a) Improving soil fertility

Question: What role do bees play in agriculture?

a) Soil aeration

b) Pollination

c) Pest control

d) Weed suppression

Answer: b) Pollination

Question: Which agricultural practice involves planting a variety of crops in the same field?

a) Monoculture

b) Polyculture

c) Hydroponics

d) Aeroponics

Answer: b) Polyculture

Question: What is the purpose of applying fungicides in agriculture?

a) Weed control

b) Disease prevention in plants

c) Insect repellent

d) Enhancing nutrient absorption

Answer: b) Disease prevention in plants

Question: Which part of the plant absorbs water and minerals?

a) Leaves

b) Stem

c) Root

d) Flower

Answer: c) Root

Question: What is the primary function of phosphorus in plant growth?

a) Enhancing leaf color

b) Root development

c) Photosynthesis

d) Flowering and fruiting

Answer: d) Flowering and fruiting

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

a) Carbon dioxide

b) Sunlight

c) Oxygen

d) Water

Answer: b) Sunlight

Question: Which farming method involves the use of natural predators to control pests?

a) Organic farming

b) Hydroponics

c) Aeroponics

d) Integrated pest management (IPM)

Answer: d) Integrated pest management (IPM)

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

a) Increasing acidity

b) Improving drainage

c) Decreasing fertility

d) Adjusting pH

Answer: d) Adjusting pH

Question: What is the term for the protective outer layer of a seed?

a) Cotyledon

b) Pericarp

c) Endosperm

d) Seed coat

Answer: d) Seed coat

Question: In agriculture, what does GMO stand for?

a) General Management Order

b) Genetically Modified Organism

c) Growth and Maintenance Operation

d) Greenhouse Management Optimization

Answer: b) Genetically Modified Organism

Question: Which of the following is a leguminous crop?

a) Wheat

b) Barley

c) Soybean

d) Rice

Answer: c) Soybean

Question: What is the purpose of tilling or plowing the soil?

a) Enhancing soil structure

b) Increasing erosion

c) Suppressing weed growth

d) Promoting waterlogging

Answer: a) Enhancing soil structure

Question: What is the primary nutrient in fertilizers that promotes plant growth?

a) Nitrogen

b) Phosphorus

c) Potassium

d) Magnesium

Answer: a) Nitrogen

Question: Which farming method involves growing crops without soil?

a) Aeroponics

b) Hydroponics

c) Organic farming

d) No-till farming

Answer: b) Hydroponics