1601: According to Meadows (1972), if the present trends in world population, industrialisation, pollution, food production and resource depletion continue unchanged, the Limits to Growth on our planet will be reached in the next
(a) 50 years
(b) 100 years
(c) 150 years
(d) 200 years
1602: There are 50 students admitted to a nursery class. Some students can speak only English and some can speak only Hindi. 10 students can speak both English and Hindi. If the number of students who can speak English is 21, then how many students can speak Hindi, how many can speak only Hindi and how many can speak only English ?
(a) 21, 11 and 29 respectively
(b) 28, 18 and 22 respectively
(c) 37, 27 and 13 respectively
(d) 39, 29 and 11 respectively
1603: The technique used to transmit audio signals in television broadcasts is
(a) Amplitude Modulation
(b) Frequency Modulation
(c) Pulse Code Modulation
(d) Time Division Multiplexing
1604: The first great experiment of Gandhiji in "Satyagraha" took place in:
(a) Dandi
(b) Champaran
(c) South Africa
(d) Bardoli
1605: Among the following, which were frequently mentioned in the news for the outbreak of Ebola virus recently?
(a) Syria and Jordan
(b) Guinea, Sierra Leone and Liberia
(c) Philippines and Papua New Guinea
(d) Jamaica, Haiti and Surinam