Chapter Exam

Chapter 12: Improvement in Food Resources — Online MCQ Test

Q: Which of the following is an example of crop variety improvement?

Answer: A. Breeding high-yielding crop varieties — Crop variety improvement means developing plants with better yield, quality, and resistance. Breeding high-yielding varieties is a direct example.

Q: The process of supplying essential elements to plants for growth is called ______.

Answer: B. Manuring — Manuring is the process of adding nutrients to the soil for plant growth. It helps maintain soil fertility.

Q: Why are crop varieties with shorter maturity duration often preferred?

Answer: B. They allow more than one crop cycle in a year — Short-duration crops mature faster, which helps farmers grow more crops in the same field in one year. This improves productivity.

Q: Which of the following is the correct sequence in crop production?

Answer: B. Ploughing → Sowing → Irrigation → Harvesting — Crop production generally begins with preparing the soil, followed by sowing, irrigation, and finally harvesting. This is the logical farming sequence.

SCIENCE · CLASS 9th · Karnataka State Board

Practice Chapter 12: Improvement in Food Resources with a free chapter-wise online MCQ test for Karnataka State Board CLASS 9th SCIENCE. This chapter covers: The final chapter details crop variety improvement crop production management crop protection nutrient management animal husbandry cattle farming poultry fish production and beekee.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 12: Improvement in Food Resources — Important Questions & Answers (FAQ)

Frequently asked questions from Karnataka State Board CLASS 9th SCIENCE — Chapter 12: Improvement in Food Resources, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following is an example of crop variety improvement?

A. Breeding high-yielding crop varieties ✓
B. Storing grains in silos
C. Removing weeds manually
D. Using cold storage for fruits

Answer: A. Breeding high-yielding crop varieties
Crop variety improvement means developing plants with better yield, quality, and resistance. Breeding high-yielding varieties is a direct example.

The process of supplying essential elements to plants for growth is called ______.

A. Irrigation
B. Manuring ✓
C. Harvesting
D. Threshing

Answer: B. Manuring
Manuring is the process of adding nutrients to the soil for plant growth. It helps maintain soil fertility.

Why are crop varieties with shorter maturity duration often preferred?

A. They require no water
B. They allow more than one crop cycle in a year ✓
C. They do not need manure
D. They grow only in winter

Answer: B. They allow more than one crop cycle in a year
Short-duration crops mature faster, which helps farmers grow more crops in the same field in one year. This improves productivity.

Which of the following is the correct sequence in crop production?

A. Harvesting → Sowing → Storage → Ploughing
B. Ploughing → Sowing → Irrigation → Harvesting ✓
C. Storage → Ploughing → Harvesting → Sowing
D. Sowing → Harvesting → Ploughing → Irrigation

Answer: B. Ploughing → Sowing → Irrigation → Harvesting
Crop production generally begins with preparing the soil, followed by sowing, irrigation, and finally harvesting. This is the logical farming sequence.

Which statement best explains why crop protection is necessary after harvesting as well?

A. Harvested grains can still be damaged by insects, fungi, and moisture ✓
B. Harvested grains continue photosynthesis
C. Harvested grains do not need storage
D. Harvested grains become immune to pests

Answer: A. Harvested grains can still be damaged by insects, fungi, and moisture
Even after harvesting, grains can spoil due to pests, fungi, and moisture during storage. Protecting them is essential to prevent loss.

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