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Class 9 Science Chapter 15 Improvement In Food Resources Quiz 4 (25 MCQs)

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1. Identify abiotic factor
2. The unwanted plants which grow with main crops are called
3. Which of the following is known as energy currency?
4. Which one is not a source of carbohydrate?
5. Explain intervarietal hybridisation
6. What is the other name for Apis cerana indica?
7. Which one of the following nutrients is not available in fertilizers?
8. Fumigation in grain storage is done to:
9. What percent of cropped area of India is still unirrigated
10. A farmer uses sunhemp as a green manure before sowing wheat. What is the benefit?
11. Hybridisation is the technique of
12. Find the odd one out:[White revolution, milk, fish]
13. Loss of foodgrain may occur due to (a) Grains are properly dried(b) Spraying of chemical to protect grains from fungus and insects(c) Grains are kept in moisture(d)Storage place have rats
14. Plants have roots that take in water and nutrients from .....
15. Which among the following is the rabi crop?
16. Hybridisation of which species of cow will give high immunity and high lactation period?
17. What has green revolution led to?
18. Identify the macronutrient-
19. Which of the following is rich in carbohydrates?
20. Name any two factors for which crop variety improvement is done.
21. Differentiate between rabi and kharif crops with examples.
22. Who is the father of Green Revolution in the World?
23. It is not a way to improve crop
24. The "central dogma" states that genetic information flows from
25. Iron is a macronutrient
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