Class 8 science chapter 1 crop production and management book work

 Q-1 Select the correct word from the following list and fill in the blanks:

(float, water, crop, nutrients, preparation)

a) The same kind of plants grown and cultivation on a large scale at a place is called crop.
b) The first step before growing crops is preparation of the soil.
c) Damaged seeds would float on top of water.
d) For growing a crops, sufficient sunlight and water and nutrients.

Q-2 Match items in Column A with those in Column B:

AB
1. Kharif crops→Paddy and cotton (1)
2. Rabi crops→Wheat and gram, mustard etc. (2)
3. Chemical fertilisers→Urea and super phosphate (3)
4. Organic manure→Animal excreta, cow dung, urine and plant waste (4)

Q-3 Give two examples of each:
a) Rabi crop = pea, wheat, gram, mustard etc.
b) Kharif crop = paddy, cotton, maize, millet etc.

Q-10 Arrange the following boxes in proper order to make a flow chart of sugarcane crop production:

  1. Preparation of soil

  2. Ploughing the field

  3. Sowing

  4. Manuring

  5. Irrigation

  6. Harvesting

  7. Sending crop to sugar factory

Q-11 Complete the following word puzzle with the help of clues given below:

  1. Providing water to the crops
    Ans: Irrigation

  2. Keeping crop grains for a long time under proper conditions
    Ans: Storage

  3. Certain plants of the same kind grown on a large scale
    Ans: Crop

Q-12 Cross:

  1. A machine used for cutting the matured crop
    Ans: Harvester

  2. A rabi crop that is also one of the pulses
    Ans: Gram

  3. A process of separating the grain from chaff
    Ans : winnowing 

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