46: Consider the following:-
1. Carbon dioxide
2. Oxides of Nitrogen
3. Oxides of Sulphur
Which of the above is/are the emission/emissions from coal combustion at thermal power plants?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
47: Consider the following States :
I. Gujarat
II. Karnataka
III. Maharashtra
IV. Tamil Nadu.
The descending order of these States with reference to their level of Per Capita Net State Domestic Product is
(a) I, III, IV, II
(b) III, I, II, IV
(c) I, III, II, IV
(d) III, I, IV, II
48: The cellular and molecular control of programmed cell death is known as
(a) Apoptosis
(b) Ageing
(c) Degeneration
(d) Necrosis
49: Consider the following statements:
The nation-wide 'Soil Health Card Scheme' aims at
1. expanding the cultivable area under irrigation.
2. enabling the banks to assess the quantum of loans to be granted to farmers on the basis of soil quality.
3. checking the overuse of fertilizers in farmlands.
Which of the above statements is/are correct?
(a) 1 and 2 only
(b) 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
50: Consider the following statements in respect of a jet engine and a rocket:
1. A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space.
2. A rocket carries its own supply of oxygen in the gas form, and fuel.
Which of the statements given above is/are correct ?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2