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Jss3 first term Agricultural science past questions and answers

Jss3 first term Agricultural science past questions and answers

Here are 20 JSS3 Agricultural Science questions with options and answers:

What is the main function of the root system in plants?
a) Photosynthesis
b) Absorption of water and nutrients
c) Transpiration
d) Reproduction
Answer: b) Absorption of water and nutrients

Which of the following is not a method of asexual plant propagation?
a) Grafting
b) Budding
c) Seed production
d) Layering
Answer: c) Seed production

What type of soil is best for crop cultivation?
a) Sandy soil
b) Clay soil
c) Loamy soil
d) Peat soil
Answer: c) Loamy soil

Which agricultural practice involves the raising of fish and other aquatic organisms for food?
a) Horticulture
b) Apiculture
c) Pisciculture
d) Sericulture
Answer: c) Pisciculture

What is the primary source of energy for photosynthesis in plants?
a) Oxygen
b) Carbon dioxide
c) Sunlight
d) Water
Answer: c) Sunlight

Which of the following animals is a ruminant?
a) Horse
b) Pig
c) Sheep
d) Dog
Answer: c) Sheep

What is the process of breaking down complex organic matter into simpler substances by microorganisms?
a) Fermentation
b) Photosynthesis
c) Decomposition
d) Respiration
Answer: c) Decomposition

Which of the following is not a primary pest of crops?
a) Aphids
b) Ladybugs
c) Weevils
d) Grasshoppers
Answer: b) Ladybugs

Which agricultural tool is used for weeding and breaking up the soil?
a) Hoe
b) Plow
c) Harrow
d) Scythe
Answer: a) Hoe

What is the primary function of the stem in plants?
a) Support
b) Storage of food
c) Photosynthesis
d) Absorption of water
Answer: a) Support

What is the recommended spacing for planting maize in rows in most agricultural practices?
a) 10 cm
b) 20 cm
c) 40 cm
d) 80 cm
Answer: c) 40 cm

Which of the following is a common disease in poultry?
a) Foot and mouth disease
b) Newcastle disease
c) Anthrax
d) Tuberculosis
Answer: b) Newcastle disease

What is the scientific name for the honeybee?
a) Apis mellifera
b) Bombus terrestris
c) Vespa crabro
d) Halictus ligatus
Answer: a) Apis mellifera

Which part of the plant is responsible for the transport of water and nutrients?
a) Leaves
b) Roots
c) Stems
d) Flowers
Answer: c) Stems

What is the primary function of the fruit in a flowering plant?
a) Reproduction
b) Protection of seeds
c) Photosynthesis
d) Storage of water
Answer: b) Protection of seeds

Which farming practice involves the cultivation of crops and the raising of animals in the same area?
a) Monoculture
b) Polyculture
c) Aquaculture
d) Horticulture
Answer: b) Polyculture

What is the common name for the nitrogen-fixing bacteria that form symbiotic relationships with leguminous plants?
a) Rhizobium
b) Escherichia
c) Bacillus
d) Streptococcus
Answer: a) Rhizobium

Which gas is released by plants during respiration?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen
Answer: b) Carbon dioxide

What is the process of transferring pollen from the male reproductive part to the female reproductive part of a flower?
a) Fertilization
b) Germination
c) Pollination
d) Transpiration
Answer: c) Pollination

Which of the following is a primary macronutrient required for plant growth?
a) Iron
b) Calcium
c) Potassium
d) Copper
Answer: c) Potassium


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