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Correct Answer: B) Ganga.
Correct Answer: C) Both 1&2.
Correct Answer: B) 300 mm.
Correct Answer: B) During the iron age.
Correct Answer: B) Farming.
Correct Answer: D) 4.
Correct Answer: B) Check basin.
Correct Answer: B) Furrow irrigation.
Correct Answer: C) Irregular distribution of rain.
Correct Answer: C) Cheap but less efficient.
Correct Answer: B) Irrigation.
Correct Answer: A) Southwestern.
Correct Answer: B) 90.
Correct Answer: A) North western India & Deccan plateau.
Correct Answer: C) United States.
Correct Answer: B) 23*.
Correct Answer: C) Pumps.
Correct Answer: A) Ssisat and illisut.
Correct Answer: C) Furrow.
Correct Answer: D) 54.7.
Correct Answer: B) Sub-Surface.
Correct Answer: D) Surface.
Correct Answer: C) 66.67%.
Correct Answer: D) Sprinkler system.
Correct Answer: A) 40 %.