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Question

Read the given paragraph where few words have been italicised. Preparation of soil in a field, before sowing of seeds involved two steps :-
Broadcasting and levelling . Soil in the crop field is enriched with nutrients by adding manures and fertilizers to it. Crop fields need to be irrigated from time to time . In Sprinkler system of irrigation water is allowed to fall drop by drop from a pipe just near the plant roots. Where as in drip irrigation water escapes from a revolving nozzle. Weeding in crop - fields can be done using plough. After the crop is harvested, the grain is separated from cut crop using a machine called harvester . Select the correct option regarding these.

A
Positions of sprinkler system and drip irrigation should be interchanged.
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B
Broadcasting should be replaced by winnowing
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C
Plough should not be replaced as it is correctly mentioned.
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D
Harvester should be replaced by seed drill.
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Solution

The correct option is A Positions of sprinkler system and drip irrigation should be interchanged.
Sprinkler irrigation is a method of applying irrigation water which is similar to natural rainfall. Water is distributed through a system of pipes usually by pumping. It is then sprayed into the air through sprinklers so that it breaks up into small water drops which fall to the ground. Drip irrigation is defined as any watering system that delivers a slow-moving supply of water at a gradual rate directly to the soil. Drip irrigation, which is also sometimes referred to as micro-irrigation or trickle irrigation, consists of a network of pipes, tubing valves, and emitters.
so the correct option is 'Position of a sprinkler system and drip irrigation should be exchanged'.


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