Agric Jamb Past Questions and Answers

Agric Jamb Past Questions and Answers

Here are 20 questions and answers:

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

A) Photosynthesis

B) Anchorage and Absorption

C) Storage of food

D) Transport of water

Answer: B) Anchorage and Absorption

Which of the following is not a warm-season crop?

A) Wheat

B) Maize

C) Rice

D) Sorghum

Answer: A) Wheat

What is the process of converting green plants into animal products?

A) Fermentation

B) Photosynthesis

C) Digestion

D) Ruminating

Answer: C) Digestion

Which gas is released during the process of respiration in plants?

A) Oxygen

B) Carbon dioxide

C) Nitrogen

D) Hydrogen

Answer: B) Carbon dioxide

Which agricultural practice involves the cultivation of crops and rearing of animals on the same piece of land?

A) Crop rotation

B) Mixed farming

C) Monoculture

D) Zero grazing

Answer: B) Mixed farming

Which of the following is a macronutrient required by plants for growth?

A) Iron

B) Calcium

C) Nitrogen

D) Zinc

Answer: C) Nitrogen

What is the male reproductive part of a flower called?

A) Pistil

B) Sepal

C) Stamen

D) Ovule

Answer: C) Stamen

Which of the following is an example of a leguminous crop?

A) Cassava

B) Cotton

C) Groundnut

D) Sorghum

Answer: C) Groundnut

What is the optimum pH range for most crops to grow well?

A) pH 2-4

B) pH 5-6

C) pH 7-8

D) pH 9-10

Answer: B) pH 5-6

Which agricultural practice involves removing unwanted plants from a crop field?

A) Irrigation

B) Plowing

C) Weeding

D) Pruning

Answer: C) Weeding

What is the main purpose of a pesticide?

A) Fertilization

B) Weed control

C) Pest control

D) Soil erosion prevention

Answer: C) Pest control

Which of the following is a method of soil conservation?

A) Overgrazing

B) Terracing

C) Slash and burn

D) Soil compaction

Answer: B) Terracing

Which type of farming involves the cultivation of a single crop on a large scale?

A) Monoculture

B) Mixed farming

C) Crop rotation

D) Organic farming

Answer: A) Monoculture

What is the primary source of energy for most plants?

A) Air

B) Water

C) Sunlight

D) Soil

Answer: C) Sunlight

Which animal is known as a ruminant?

A) Goat

B) Horse

C) Rabbit

D) Cow

Answer: D) Cow

What is the chemical symbol for potassium in fertilizers?

A) N

B) P

C) K

D) Fe

Answer: C) K

Which farming system involves growing crops without the use of synthetic fertilizers and pesticides?

A) Conventional farming

B) Sustainable farming

C) Organic farming

D) Hydroponics

Answer: C) Organic farming

What is the scientific name for the African oil palm?

A) Elaeis guineensis

B) Triticum aestivum

C) Zea mays

D) Solanum tuberosum

Answer: A) Elaeis guineensis

Which of the following is a plant disease caused by a fungus?

A) Mosaic

B) Rust

C) Aphid

D) Nematode

Answer: B) Rust

Which part of a plant is responsible for transpiration?

A) Leaves

B) Roots

C) Stem

D) Flowers

Answer: A) Leaves.