NCERT Class VIII Science Solutions: Chapter 1-Crop Production and Management Part 4

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Question 19:

What are organic foods?

Answer:

Crops cultivated without using any chemicals like fertilisers, pesticides, weedicides etc. are called organic foods.

Question 20:

From the word puzzle given as Fig. find atleast eight words which are ‘farmer’s friends.’ Classify them into living and nonliving.

Result for crossword puzzle (Q)

Crossword Puzzle (Q)

Result for crossword puzzle (Q)

Answer:

Result for crossword puzzle (A)

Crossword Puzzle (A)

Result for crossword puzzle (A)

Question 21:

  1. Name the tool used with a tractor for sowing seeds in a field.

  2. What are the advantages of using this tool?

Answer:

  1. Seed drill.

  2. The advantages are,

  3. Seeds are sown at a uniform distance and depth to avoid overcrowding.

  4. After sowing, seeds are covered by soil which prevent them from being eaten by birds.

  5. It saves time and labour.

Question 22:

  1. Name the practice followed for large scale rearing of farm animals.

  2. What facilities are provided to farm animals?

Answer:

  1. Animal husbandry.

    Image of Animal husbandry

    Animal Husbandry

    Image of Animal husbandry

  2. Animals are provided with proper food, shelter and care.