Agricultural science NECO exam past questions and answers

Agricultural science NECO exam past questions and answers

Here they are;

Question: What is the process by which green plants make their own food using sunlight?

a) Respiration

b) Photosynthesis

c) Transpiration

d) Germination

Answer: b) Photosynthesis

Question: Which soil type 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 primary purpose of fertilizers in agriculture?

a) Weed control

b) Pest management

c) Soil fertility improvement

d) Water conservation

Answer: c) Soil fertility improvement

Question: Which gas is essential for plant photosynthesis?

a) Oxygen

b) Nitrogen

c) Carbon dioxide

d) Hydrogen

Answer: c) Carbon dioxide

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

a) Pericarp

b) Endosperm

c) Seed coat

d) Cotyledon

Answer: c) Seed coat

Question: Which farming practice involves the cultivation of crops and the raising of livestock on the same piece of land?

a) Monoculture

b) Polyculture

c) Agroforestry

d) Mixed farming

Answer: d) Mixed farming

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

a) Pest control

b) Soil fertility preservation

c) Water conservation

d) Weed suppression

Answer: b) Soil fertility preservation

Question: Which of the following is a leguminous crop commonly used as a cover crop to fix nitrogen in the soil?

a) Wheat

b) Barley

c) Clover

d) Rice

Answer: c) Clover

Question: What is the term for the process of turning green manure or crop residues into the soil to improve fertility?

a) Irrigation

b) Plowing

c) Mulching

d) Incorporation

Answer: d) Incorporation

Question: In terms of plant anatomy, what tissue is responsible for transporting water and nutrients throughout the plant?

a) Epidermis

b) Xylem

c) Phloem

d) Cortex

Answer: b) Xylem

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

a) Wheat

b) Barley

c) Corn (Maize)

d) Oats

Answer: c) Corn (Maize)

Question: What is the term for the intentional raising of fish in controlled environments for commercial purposes?

a) Aquaculture

b) Ichthyology

c) Limnology

d) Hydroponics

Answer: a) Aquaculture

Question: Which of the following is a micronutrient essential for plant growth?

a) Nitrogen

b) Phosphorus

c) Potassium

d) Zinc

Answer: d) Zinc

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

a) Improve soil structure

b) Control pests and diseases

c) Enhance water retention

d) Accelerate germination

Answer: b) Control pests and diseases

Question: Which agricultural practice involves growing different crops in the same field during different seasons to maximize productivity?

a) Crop rotation

b) Intercropping

c) Monoculture

d) Agroforestry

Answer: b) Intercropping

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

a) Pest control

b) Soil erosion prevention

c) Water conservation

d) Crop rotation

Answer: b) Soil erosion prevention

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

a) Absorb sunlight

b) Fix nitrogen

c) Aid in water absorption

d) Facilitate nutrient uptake

Answer: d) Facilitate nutrient uptake

Question: Which of the following is a sustainable farming practice that involves minimal soil disturbance?

a) No-till farming

b) Strip cropping

c) Terracing

d) Furrow irrigation

Answer: a) No-till farming

Question: What is the term for the controlled grazing of livestock to prevent overgrazing and improve pasture quality?

a) Free-range grazing

b) Rotational grazing

c) Intensive grazing

d) Extensive grazing

Answer: b) Rotational grazing

Question: In crop production, what does the term "hybrid" refer to?

a) Genetically modified organism

b) Crossbreeding of different varieties

c) Organic farming method

d) Irrigation technique

Answer: b) Crossbreeding of different varieties