Chapter Exam

Chapter 12 BIOLOGY : Improvement in Food Resources — Online MCQ Test

Q: Which of the following is a Kharif crop?

Answer: B. Paddy — Paddy is a rainy season crop grown in the Kharif season.

Q: The process of providing nutrients to plants through soil is known as...

Answer: A. Manuring — Manuring is the process of adding organic matter or fertilizers to the soil to supply plant nutrients.

Q: Which factor most significantly affects the quality of storage in a warehouse for grains?

Answer: A. Presence of pests and humidity — Moisture and pests are the primary causes of grain spoilage during storage.

SCIENCE · CLASS 9th · Andhra State Board

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

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

Frequently asked questions from Andhra State Board CLASS 9th SCIENCE — Chapter 12 BIOLOGY : 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 a Kharif crop?

A. Wheat
B. Paddy ✓
C. Mustard
D. Pea

Answer: B. Paddy
Paddy is a rainy season crop grown in the Kharif season.

The process of providing nutrients to plants through soil is known as...

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

Answer: A. Manuring
Manuring is the process of adding organic matter or fertilizers to the soil to supply plant nutrients.

What is the primary objective of inter-cropping?

A. To reduce crop yield
B. To prevent pests and diseases spreading to all plants ✓
C. To grow crops in random order
D. To increase soil erosion

Answer: B. To prevent pests and diseases spreading to all plants
Inter-cropping helps prevent pests and diseases from spreading to all plants in the field by alternating rows.

If a farmer finds that his crops are infested with insects, which of the following is the most immediate biological management strategy?

A. Adding more nitrogen fertilizer
B. Using biopesticides or biological control agents ✓
C. Increasing water irrigation
D. Reducing the harvest period

Answer: B. Using biopesticides or biological control agents
Biological control agents are natural predators or parasites of pests that manage infestations without chemical reliance.

Which factor most significantly affects the quality of storage in a warehouse for grains?