CBSE Class 8 Science - Crop Production And Management (4)
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VERY SHORT ANSWER TYPE QUESTIONS:-
1. Name the agricultural implements associated with the following agricultural tasks:-
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
(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
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