NIOS Class 10 Science and Technology Chapter 31. FOOD PRODUCTION AND ANIMAL-HUSBANDRY – Chapter-wise Important Questions and Answers

NIOS Class 10 Science and Technology Chapter 31. FOOD PRODUCTION AND ANIMAL-HUSBANDRY | MCQs, Short & Long Answer Questions | 31. FOOD PRODUCTION AND ANIMAL-HUSBANDRY

Chapter 31. FOOD PRODUCTION AND ANIMAL-HUSBANDRY

INTEXT QUESTIONS 31.1

1. Which council has been set up in India for Agricultural Research and Development?

Answer: The council set up in India for agricultural research and development is the Indian Council of Agricultural Research (ICAR).

2. Mention any three advantages of crop rotation.

(i) ___________ (ii) ___________ (iii) ___________

Answer: (i) Better harvest (higher crop yield)   (ii) Reduces soil erosion  (iii) Controls weeds, pests and diseases

3. In the table given below fill in the blanks and example has already been done for you.

Name	Method
1. Farming of ‘Moong’ after Potatoes	(A) …………………………………
2. Growing four crops in the same field.	(B) …………………………………
3. …………………………………	(C) Organic farming
4. ‘Barseem’ barley, sun-flower	(D) ………………………………….

Answer:

Name	Method
1. Farming of 'Moong' after potatoes	(A) Crop rotation
2. Growing four crops in the same field	(B) Mixed cropping
3. Obtaining harvest without damaging the environment	(C) Organic farming
4. 'Berseem', barley, sunflower	(D) Crop rotation

INTEXT QUESTION 31.2

1. Some statements are given below. Arrange them in the proper sequence so that the chain given below gets completed.

1. Use of grass cutting implement

2. Transplantation of new plants

3. Preparing the vermicompost

4. Treating the seeds by immersing these in ceresin or agrosin.

5. Use of mix cropping

6. Making topsoil fertile

7. Preparation of the field for sowing

Photo

Answer:  (A) 1 (B) 4 (C) 7 (D) 2 (E) 3

2. Mention a chemical and an organic method for protecting growing crops against attack by weeds.

Answer: Chemical method: Spraying weed-killers such as 2,4-D, NCAA, or Simazine to destroy weeds.

Organic method: Manual weeding or mulching to prevent weed growth.

3. What can be done for removing plant destroying insects etc. what harm can be caused by chemical insecticides?

Answer: Plant-destroying insects can be removed by spraying insecticides. To reduce the use of chemicals, disease-resistant crop varieties and biological control methods (using natural enemies of pests) can also be used.

Harm caused by chemical insecticides:

(i) They can be poisonous to plants, animals, and humans.

(ii) They pollute the environment by contaminating soil, water, and air.

4. Mention any two better ways of storing grains.

(i) __________________________ (ii) ___________________________

Answer: (i) Pusa Bin  (ii) Pusa Cubicl

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