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Improvement in Food Resources — Class 9 CBSE Science MCQs with Solutions
Free Class 9 CBSE Science Improvement in Food Resources MCQs with step-by-step solutions. Practise online on Prepizo — no login needed.
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Sample questions with solutions
Q1 — easy
Macro-nutrients required by plants in large amounts from soil include:
A. Iron, Zinc, Copper
B. Nitrogen, Phosphorus, Potassium (NPK) ✓ Correct
C. Boron, Manganese, Chlorine
D. Calcium, Sodium, Iodine
Solution: NPK are essential primary plant macronutrients.
Q2 — easy
Compost prepared by using earthworms to speed up organic matter decomposition is:
A. Green manure
B. Vermicompost ✓ Correct
C. Bio-fertilizer
D. Chemical fertilizer
Solution: Earthworms decompose organic matter into vermicompost.
Q3 — easy
Leguminous crops (e.g. gram, peas) planted between main cereal crops to enrich soil nitrogen is an example of:
A. Monoculture
B. Crop Rotation / Intercropping ✓ Correct
C. Deforestation
D. Weeding
Solution: Crop rotation uses nitrogen-fixing legumes to restore soil fertility.
Q4 — easy
Growing two or more crops simultaneously in definite alternate row patterns on same field is:
A. Mixed cropping
B. Intercropping ✓ Correct
C. Crop rotation
D. Monocropping
Solution: Intercropping utilizes field space in systematic row patterns.
Q5 — easy
Unwanted plants growing alongside main crops that compete for nutrients and water are:
A. Herbs
B. Weeds (e.g. Xanthium, Parthenium) ✓ Correct
C. Shrubs
D. Legumes
Solution: Weeds are unwanted competitive plants.
Q6 — easy
High-yielding indigenous Indian breed of dairy cattle is:
A. Jersey
B. Sahiwal / Red Sindhi ✓ Correct
C. Holstein-Friesian
D. Brown Swiss
Solution: Sahiwal and Red Sindhi are indigenous high-milk cattle breeds.
Q7 — easy
Exotic foreign cattle breeds imported for long lactation periods include:
A. Gir
B. Jersey and Holstein-Friesian ✓ Correct
C. Sahiwal
D. Sanchi
Solution: Jersey and Holstein-Friesian are popular exotic dairy breeds.
Q8 — easy
Poultry farming aims to raise birds for meat (broilers) and egg production, called:
A. Layers ✓ Correct
B. Drones
C. Hatchlings
D. Fry
Solution: Egg-laying poultry birds are called layers.
Q9 — easy
Cross-breeding Indian hen Aseel with exotic breed Leghorn is done to improve:
A. Feather color
B. Chick quality, heat tolerance, and egg yield ✓ Correct
C. Flight height
D. Beak length
Solution: Cross-breeding enhances climate adaptability and productivity.
Q10 — easy
Culture of marine fish species in coastal ocean waters is known as:
A. Apiculture
B. Mariculture / Aquaculture ✓ Correct
C. Sericulture
D. Pisciculture
Solution: Mariculture involves farming marine organisms.
Q11 — easy
Composite Fish Culture system rears 5-6 complementary fish species together in a pond. Surface feeder fish in this system is:
A. Rohu
B. Catla ✓ Correct
C. Mrigal
D. Common Carp
Solution: Catla feeds on surface plankton.
Q12 — easy
In Composite Fish Culture, Rohu feeds in the _______ zone and Mrigal/Common Carp feed at the _______.
A. Surface, Bottom
B. Middle zone, Bottom floor ✓ Correct
C. Bottom, Surface
D. Surface, Middle
Solution: Rohu is a middle-zone feeder; Mrigal and Common Carp are bottom feeders.
Q13 — easy
Rearing and management of honeybees in beehives for honey and wax production is:
A. Sericulture
B. Apiculture ✓ Correct
C. Aquaculture
D. Pisciculture
Solution: Apiculture is commercial bee-keeping.
Q14 — easy
Italian bee variety widely preferred for commercial honey production due to high honey collection capacity is:
A. Apis dorsata
B. Apis mellifera ✓ Correct
C. Apis indica
D. Apis florae
Solution: Apis mellifera is the high-yield Italian honeybee.
Q15 — easy
Biopesticide derived from natural plant sources commonly used in organic farming is:
A. 2,4-D
B. Neem and Turmeric extract ✓ Correct
C. DDT
D. Endosulfan
Solution: Neem and turmeric extracts serve as bio-pesticides.