1556: Which one among the following languages has largest number of speakers in the world?
(a) Bengali
(b) French
(c) Japanese
(d) Portuguese
1557: The world's highest ground based telescopic observatory is located in
(a) Colombia
(b) India
(c) Nepal
(d) Switzerland
1558: Which one of the following is the objective of National Renewal Fund ?
(a) To safeguard the interests of workers who may be affected by technological upgradation of industry or closure of sick units
(b) To develop the core sector of the economy
(c) For the development of infrastructure such as energy, transport, communications and irrigation
(d) For human resource development such as full literacy, employment, population control, housing and drinking water
1559: Biofilms are
(a) colour films used by biologists to photograph living organisms
(b) photomicrographs of microorganisms from various habitats
(c) accumulations of microorganisms at surfaces such as those of a rock, a tooth or an oil droplet
(d) photographic films made through fermentation processes of certain industrial microorganisms
1560: Among the following which planet takes maximum time for one revolution around the Sun?
(a) Earth
(b) Jupiter
(c) Mars
(d) Venus