771: An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction of Earth
(a) Does not exist at such distance.
(b) Is neutralized by the attraction of the moon.
(c) Provides the necessary speed for its steady motion.
(d) Provides the necessary acceleration for its motion.
772: Superconductors are so called because they
(a) Efficiently conduct heat from one hot body to another
(b) Offer no resistance to conduction of heat at high temperatures
(c) Offer no resistance to conduction of electricity at low temperatures
(d) Produce high temperatures while conducting electricity
773: Directive Principles of State Policy are included in which part of the Indian Constitution?
(a) Part IV
(b) Part III
(c) Part II
(d) Part I
774: The Supreme Court of India tenders advice to the President on a matter of law or fact
(a) on its own initative
(b) only if he seeks such advice
(c) only if the matter relates to the Fundamental Rights of citizens
(d) only if the issue poses a threat to the unity and integrity of the country
775: Identify the correct order of the processes of soil-erosion from the following:
(a) Splash erosion, Sheet erosion, Rill erosion, Gully erosion
(b) Sheet erosion, Splash erosion, Gully erosion, Rill erosion
(c) Rill erosion, Gully erosion, Sheet erosion, Splash erosion
(d) Gully erosion, Rill erosion, Sheet erosion, Splash erosion