1741: Consider the following:

1. Oxides of Hydrogen

2. Oxides of Nitrogen

3. Oxides of Sulphur

Which of the above causes/cause acid rain ?

(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
1742: With reference to soil conservation, consider the following practices :

1. Crop rotation

2. Sand fences

3. Terracing

4. Wind breaks

Which of the above are considered appropriate methods for soil conservation in India ?

(a) 1, 2 and 3 only
(b) 2 and 4 only
(c) 1, 3 and 4 only
(d) 1, 2, 3 and 4
1743: Mandamus means:

(a) A writ issued by a superior court command that a specified thing be done

(b) A legal term for a prisoner's right to appear in person and be tried in court

(c) A written public declaration of the intentions, opinions or motives of a sovereign or of a leader, party or body

(d) The principle of hybridisation, discovered by Gregor Mendel which led to the improved breeds of plant and animal life
1744: In how many maximum different ways can 3 identical balls be placed in the 12 squares (each ball to be placed in the exact centre of the squares and only one ball is to be placed in one square) shown in the figure given below such that they do not lie along the same straight line?

(a) 144
(b) 200
(c) 204
(d) 216
1745: As per the Solid Waste Management Rules, 2016 in India, which one of the following statements is correct?

(a) Waste generator has to segregate waste into five categories.

(b) The Rules are applicable to notified urban local bodies, notified towns and all industrial townships only.

(c) The Rules provide for exact and elaborate criteria for the identification of sites for landfills and waste processing facilities.

(d) It is mandatory on the part of waste generator that the waste generated in one district cannot be moved to another district