4151: 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
4152: Most guitarists are bearded males. If A represents all males, B represents bearded males and C represents all male guitarists, then the correct diagram for their relation (shaded portion) is
4153: Alauddin Khilji maintained control on price during his reign because:

(a) He wanted to keep large army at lower expenses.

(b) He had mercy with poor people.

(c) He wanted to gain popularity.

(d) All of the above
4154: Match List I with List II and select the correct answer by using the codes given below the lists :

List I----------------------- List II

(Events)------------------- (Results)

I. Morley-Minto Reforms---------(A) Country-wide agitation

II. Simon Commission-----------(B) Withdrawal of a movement

III.The Chauri-Chaura incident--(C) Communal Electorates

IV.The Dandi March------------(D) Communal outbreaks

-----------(E) Illegal manufacture of salt

Codes:

(a) I-C, II-D, III-E, IV-B
(b) I-D, II-A. III-B, IV-C
(c) I-B, II-C, III-D, IV-E
(d) I-C, II-A, III-B, IV-E
4155: Consider the following statements :

1. Maize can be used for the production of starch.
2. Oil extracted from maize can be a feedstock for biodiesel.
3. Alcoholic beverages can be produced by using maize.

Which of the statements given above is / are correct ?

(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3