1791: Seismic waves that vibrate perpendicular to the direction of their path:
(a) Travel through the solid parts of the earth only
(b) Travel through the solid as well as other parts of the earth
(c) Spread on the surface of the earth
(d) None of the above
1792: Within biological communities, some species are important in determining the ability of a large number of other species to persist in the community. Such species are called
(a) Keystone species
(b) Allopatric species
(c) Sympatric species
(d) Threatened species
1793: Consider the following statements :
In a nuclear reactor, self-sustained chain reaction is possible, because
I. more neutrons are released in each of the fission reactions.
II. the neutrons immediately take part in the fission process.
III. the fast neutrons are slowed down by Graphite.
IV. every neutron realeased in the fission reaction initiates further fission.
Which of these statements are correct ?
(a) I, II and III
(b) I and III
(c) II and IV
(d) II, III and IV
1794: Which one of the following submitted in 1875 a petition to the House of Commons demanding India's direct representation in the British Parliament?
(a) The Deccan Association
(b) The Indian Association
(c) The Madras Mahajan Sabha
(d) The Poona Sarvajanik Sabha
1795: Kalhana's Rajatarangini (twelfth century) contains
(a) A collection of stories preaching morals
(b) The history of the dynasties of Kashmir
(c) The history of early Muslim rule in India
(d) An account of the early Indian voyages