NCERT Class-9 Science Solutions: Chapter 15-Improvement In Food Resources Part 3

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Question 14:

Which one of the following fishes is a surface feeder?

  1. Rohus

  2. Mrigals

  3. Common carps

  4. Catlas

Answer: D

Image Figure shown the catlas

Image Figure Shown the Catlas

Image Figure shown the catlas

Question 15:

Animal husbandry is the scientific management of

  1. Animal breeding

  2. Culture of animals

  3. Animal livestock

  4. Rearing of animals

  5. (i), (ii) and (iii)

  6. (ii), (iii) and (iv)

  7. (i), (ii) and (iv)

  8. (i), (iii) and (iv)

Answer: D

Image the animal husbandry

Image the Animal Husbandry

Image the animal husbandry

Question 16:

Which one of the following nutrients is not available in fertilizers?

  1. Nitrogen

  2. Phosphorus

  3. Iron

  4. Potassium

Answer: C

Image nutrients available in fertilizers

Image Nutrients Available in Fertilizers

Image nutrients available in fertilizers

Question 17:

Preventive and control measures adopted for the storage of grains include

  1. Strict cleaning

  2. Proper disjoining

  3. Fumigation

  4. All of the above

Answer: D

Short Answer Questions

Question 18:

Match the Column A with the Column B

Match the Column a with the Column B (Q)
Match the Column A with the Column B (Q)

Column A

Column B

Catlas

Bottom feeders

Rohu

Surface feeders

Mrigals

Middle-zone feeders

Fish farming

Culture fishery

Answer:

Match the Column a with the Column B (A)
Match the Column A with the Column B (A)

Column A

Column B

Catlas

b Surface feeders

Rohu

c Middle-zone feeders

Mrigals

a Bottom feeders

Fish farming

d Culture fishery

Question 19:

Fill in the blanks

  1. Pigeon pea is a good source of __________.

  2. Berseem is an important__________crop.

  3. The crops which are grown in rainy season are called__________crops.

  4. __________are rich in vitamins.

  5. __________crop grows in winter season.

Answer:

  1. Pigeon pea is a good source of protein.

  2. Berseem is an important fodder crop.

  3. The crops which are grown in rainy season are called Khari crops.

  4. Vegetables are rich in vitamins.

  5. Rabi crop grows in winter season.