Crop production and Management Questions answer Class 08 Book Science Mission Part 01

SChand Publication Book Science Mission Question Answer Part 01

Chapter 01 Crop production and Management

Class 08 Chapter 01 Crop production and Management

A. Multiple choice questions.

1. To control and destroy pests, we use

(a) Fertilizers (b) Grazing animals (c) Pesticides (d) Weedicides

2. Weeds are

(a) Microbes (b) Unwanted herbs (c) Insects (d) Fungal pests

3. Rabi crops include (a) Wheat (b) Paddy(c) Corn (maize)(d) Melons

4. Raising both, plant crop and livestock in farm is

(a) Mixed farming (b) Intercropping (c) Mixed cropping (d) Rotation of crops

5. Bins, silos and granaries are used to store

(a) Vegetables (b) Grains (c) Fruits (d) Bulbs (onion)

Ans: 1. c 2. b 3. a 4. a 5. b

B. Match the following.

Column 'A'

Ans

Column 'B'

1. Maize crop

2. Wheat crop

3. Trifolium crop

4. Blue-green alga

5. Nitrification

6. Denitrification

1. c

2. b

3. e

4. f

5. a

6. d

a. Decay of the dead by microbes.

b. Rabi crop

C. Kharif crop

d. Release of nitrogen by bacteria from decaying matter

e. Intercrop

f. Nitrogen fixing

C. State whether 'true' or 'false'.

1. Crop rotation helps in enriching soil with nitrogen. True

2. Sprinkler irrigation leads to wastage of water. False

3. Process of removing weeds is called tilling. False

4. Excessive use of fertilizers is harmful. True

5. Honey is nothing else but a concentrated solution of sugar. False

6. Fixing of air nitrogen is denitrification. False

D. Give one word answer.

1. Task performed by a farmer for loosening the soil.

2. Chemical compounds added to the soil for increasing soil fertility.

3. Rearing fish.

4. Rearing honeybees for honey

5. Task performed by a farmer for exposing seeds, worms and insects in a field.

6. Rearing birds for flesh and eggs.

7. Harmful organisms that attack and damage crops.

8. Task performed by a farmer for turning the soil upside down.

9. Growing a leguminous crop in between two cereal crops.

10. Growing two crops together.

Ans: 1. Ploughing 2. Fertilizers 3. Pisciculture

4. Apiculture 5. Tilling 6. Poultry 7. Pests

8. Ploughing 9. Crop rotation 10. Mixed cropping

Crop production and Management Questions answer Class 08 Book Science Mission Part 02

Crop production and Management Class 08 Book Science Mission Questions answer Part 03

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