2146: Lichens is an association of two types of organisms. They are:
(a) Algae and fungi
(b) Algae and virus
(c) Fungi and virus
(d) Virus and bacteria
2147: In the context of proposals to the use of hydrogen-enriched CNG (H-CNG) as fuel for buses in public transport, consider the following statements:
1. The main advantage of the use of H-CNG is the elimination of carbon monoxide emissions.
2. H-CNG as fuel reduces carbon dioxide and hydrocarbon emissions.
3. Hydrogen up to one-fifth by volume can be blended with CNG as fuel for buses.
4. H-CNG makes the fuel less expensive than CNG.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 4 only
(d) 1, 2, 3 and 4
2148: Bhakta Tukaram was a contemporary of which Mugal Emperor?
(a) Babar
(b) Akbar
(c) Aurangzeb
(d) Jahangir
2149: Water is a good solvent of ionic salts because
(a) it has a high boiling point
(b) it has a high dipole moment
(c) it has a high specific heat
(d) it has no colour
2150: To which Lodi Sultan does the given map relate and what town does the site marked A on the map represent ?
(a) Behlol Lodi, Jaunpur
(b) Sikandar Lodi, Aligarh
(c) Ibrahim Lodi, Jaunpur
(d) Ibrahim Lodi, Aligarh