2721: Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?
1. Beryllium
2. Cadmium
3. Chromium
4. Heptachlor
5. Mercury
6. Lead
7. Plutonium
Select the correct answer using codes given below.
(a) 1, 2, 3, 5 and 6 only
(b) 2, 4, 5 and 7 only
(c) 1, 3, 4, 6 and 7 only
(d) 1, 2, 3, 4, 5, 6 and 7
2722: Which one of the following is also called Stranger Gas?
(a) Argon
(b) Nitrous oxide
(c) Xenon
(d) Neon
2723: India maintained its early cultural contacts and trade links with Southeast Asia across the Bay of Bengal. For this pre-eminence of early maritime history of Bay of Bengal, which of the following could be the most convincing explanation/explanations?
(a) As compared to other countries, India had a better ship building technology in ancient and medieval times
(b) The rulers of southern India always patronized traders, brahmin priests and buddhist monks in this context
(c) Monsoon winds across the Bay of Bengal facilitated sea voyages
(d) Both (a) and (b) are convincing explanations in this context
2724: The Lahore Session of the Indian National Congress (1929) is very important in history, because
1. the Congress passed a resolution demanding complete independence
2. the rift between the extremists and moderates was resolved in that Session
3. a resolution was passed rejecting the two-nation theory in that Session
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3
(c) 1 and 3
(d) None of the above
2725: The Ninth Schedule was introduced in the Constitution of India during the prime ministership of
(a) Jawaharlal Nehru
(b) Lal Bahadur Shastri
(c) Indira Gandhi
(d) Morarji Desai