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Class 9 Science Chapter 15 Improvement In Food Resources Quiz 3 (25 MCQs)

Quiz Instructions

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1. Which of the following sequences of processes correctly reflects the central dogma?

Correct Answer: C) Transcription, translation, protein synthesis.

2. Blue revolution is related to

Correct Answer: B) Fish production.

3. Growing two or more crops but in the definite row pattern is known as

Correct Answer: C) Intercropping.

4. Which of the following would best increase yield without degrading soil health?

Correct Answer: B) Intercropping with organic inputs.

5. Xanthium and Parthenium are

Correct Answer: D) Weeds.

6. The branch of agricultural science dealing with production of field crops and management of the soil is called

Correct Answer: B) Agronomy.

7. What is the name given to crops obtained by introducing a gene that provides the desired characteristic?

Correct Answer: A) Genetically modified crops.

8. Increase in milk production is

Correct Answer: B) White revolution.

9. Rainwater harvesting indirectly supports agriculture by:

Correct Answer: C) Improving groundwater availability.

10. Preventive and control measures adopted for the storage of grains include

Correct Answer: D) All of the above.

11. What are the precautions to be takenduring sowing?

Correct Answer: D) All of the above.

12. ..... are inorganic raw materials that are absorbed from soil by the plants are

Correct Answer: C) Plant nutrients.

13. D is an example of

Correct Answer: B) Weedicide.

14. What are the different methods of fish farming and their benefits?

Correct Answer: C) The different methods of fish farming include cage culture, pond culture, and raceway culture. Each method has its own benefits such as efficient use of space, controlled environment, and high production yield.

15. Manures are considered better than fertilisers because

Correct Answer: A) Manures provide humus to the soil whereas fertilisers do not provide humus to the soil.

16. Berseem, Oats or Sudan grass are examples of

Correct Answer: D) Fodder crops.

17. Chandu wants to store the grains of his field. What measures should he take to avoid damage to the grains.

Correct Answer: D) All of these.

18. Which cropping pattern best conserves soil and prevents weed spread?

Correct Answer: C) Crop rotation.

19. What is the supplying of water to land through artificial means?

Correct Answer: C) Irrigation.

20. Rice, maize, sorghum, provide us ..... for energy requirement.

Correct Answer: C) Carbohydrate.

21. Which of the following type of bees are found very less number in the bee hive?

Correct Answer: C) Male bee.

22. Farmers grow legumes as fodder in one season and wheat in next season. This helped in the replenishment of the soil with .....

Correct Answer: C) Nitrogen.

23. Which problem is best addressed by adopting watershed management?

Correct Answer: C) Unpredictable water supply.

24. Green Revolution refers to .....

Correct Answer: C) High Yield Variety Programme.

25. Which animal-based practice gives economic return from both food and medicinal industry?

Correct Answer: C) Bee-keeping (Honey + wax).

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