CBSE Class 8 Science Crop Production And Management Assignment Set F

CBSE Class 8 Science - Crop Production And Management (6)

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VERY SHORT ANSWER TYPE QUESTIONS:-

1. Name the agricultural implements associated with the following agricultural tasks:-

(a) tilling

(b) weeding

(c) levelling

(d) sowing

(e) harvesting

2. Define the following:-

(a) crop (b) agriculture (c) threshing (d) winnowing (e) manuring (f) weeding

3. Fill in the blanks:-

(a)The same kind of plants grown & cultivated on a large scale at a place is

called_______

(b) The first step before growing crops is _______ of soil.

(c) Damaged seeds would ________ on the surface of water.

(d) For growing a crop, sufficient amount of sunlight,_______ & _______ from the

soil are essential.

(e) Paddy & maize are kinds of ________crops

(f) Animal excreta,cow dung,urine & plant waste are used to make ________

(g) Urea & superphosphate are kinds of________

(h) Wheat,gram,pea are kinds of ________ crops

4. Identify the following:-

(a) providing water to crops

(b) keeping crop grains for a long time under proper conditions

(c) certain plants of the same kind grown on a large scale

(d) a machine used for cutting the matured crop

(e) a rabi crop that is also one of the pulses

(f) a process of separating chaff from the grains

(g) a way of collecting rainwater & later using it for domestic or other purposes

5. How do crops get nutrients for their growth?

6. Name any 3 leguminous crops.

7. What provides humus to the soil?

8. In which month are rabi crops sown & harvested?

9. What are silos & how are they useful?

10. What are weedicides?

SHORT ANSWER TYPE QUESTIONS:-

1. "Use of a seed drill is preferred over broadcasting".Justify this statement giving 2 advantages

of this practice.

2. "Use of manures is advantageous over fertilizers".Justify the statement.

3. Explain the 2 ways of storing food grains on a large scale.

4. Distinguish between Rabi & Kharif crops giving examples for each.

5. Paddy cannot be grown in the winter season.Why?

 

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