3621: Which of the following is/are the advantage /advantages of practising drip irrigation?
1. Reduction in weed
2. Reduction in soil salinity
3. Reduction in soil erosion
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) None of the above is an advantage of practising drip irrigation
3622: The first Civil Disobedience Movement was started by Gandhiji after the:
(a) Rowlatt Act of 1919
(b) Jallianwala Bagh massacre in 1919
(c) Chauri Chaura incident in 1922
(d) Arrival of Cripps Mission in 1942
3623: In India, during the last decade the total cultivated land for which one of the following crops has remained more or less stagnant ?
(a) Pulses
(b) Oilseeds
(c) Rice
(d) Sugarcane
3624: Raghu Rai is well known for which one of the following areas ?
(a) Research in Mathematics
(b) Water harvesting
(c) Photography
(d) Pollution control
3625: Assertion (A):
West-flowing rivers of Peninsular India have no deltas.
Reason (R):
These rivers do not carry any alluvial sediments.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true