Class 9 • Biology • Chapter 11
IMPROVEMENT IN FOOD RESOURCES
True & False Quiz
Crop. Breed. Sustain.
✓True
✗False
25
Questions
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Ch.11
Chapter
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IX
Class
Why True & False for IMPROVEMENT IN FOOD RESOURCES?
How this format sharpens your conceptual clarity
🔵 Improvement in Food Resources directly addresses food security for India and the world — crop improvement, animal husbandry, and sustainable farming.
✅ T/F tests Kharif vs Rabi crops, types of manure and fertilisers, methods of crop improvement, irrigation sources, and fish/poultry farming.
🎯 Manure (organic, slow-release) improves soil texture; Fertilisers (inorganic, fast-release, NPK) boost yield but can cause soil degradation if overused.
📋
Read each statement carefully. Click True or False — instant feedback with explanation appears. Submit anytime; unattempted questions are marked Skipped.
Q 1
Kharif crops are sown during the rainy season.
Q 2
Manures are chemical substances rich in nutrients.
Q 3
Rice is a Rabi crop in India.
Q 4
Fertilizers provide nutrients to the soil faster than manures.
Q 5
Crop rotation improves soil fertility.
Q 6
Biofertilizers contain living microorganisms which enrich soil fertility.
Q 7
Waterlogging always benefits crops.
Q 8
Poultry farming is only for egg production.
Q 9
Aquarium fish production is called aquaculture.
Q 10
Mixed cropping means growing two or more crops together on the same field.
Q 11
Sprinkler irrigation is more suitable for clayey soils.
Q 12
HSN code in invoices relates to the scientific name of crops.
Q 13
Weeds compete with crops for nutrients, water, and sunlight.
Q 14
Excessive use of pesticides has no negative effect on the environment.
Q 15
Integrated farming combines crop and livestock production.
Q 16
Crop improvement only means increasing yield.
Q 17
Vermicompost is prepared using earthworms.
Q 18
Hybrid seeds are produced by crossing two genetically different parents.
Q 19
Fish culture in ponds never uses composite fish farming.
Q 20
Dairy farming is a form of animal husbandry.
Q 21
Plant diseases caused by fungi can be controlled using fungicides.
Q 22
Wheat is harvested in the monsoon season.
Q 23
Organic farming uses only natural fertilizers and pest control methods.
Q 24
Leguminous crops enrich soil with nitrogen through root nodules.
Q 25
Food grain storage requires dry and airtight conditions.
Key Takeaways — IMPROVEMENT IN FOOD RESOURCES
Core facts for CBSE Boards & exams
1
Kharif crops: sown in rainy season (June–Sept); e.g. paddy, maize, cotton, groundnut.
2
Rabi crops: sown in winter (Oct–Nov), harvested in summer; e.g. wheat, gram, mustard, pea.
3
Crop improvement methods: hybridisation, introduction of new varieties (HYV), genetic modification.
4
Macronutrients (needed in large amounts): N, P, K, Ca, Mg, S; Micronutrients: Fe, Mn, B, Zn, Cu, Mo.
5
Organic farming: uses bio-fertilisers and bio-pesticides, avoids synthetic chemicals.
6
Animal husbandry: includes cattle/poultry/fish farming; cross-breeding for high-yield varieties.