691: Which of the following statements are correct about the deposits of methane hydrate?
1. Global warming might trigger the release of methane gas from these deposits.
2. Large deposits of methane hydrate are found in Arctic Tundra and under the seafloor.
3. Methane in atmosphere oxidizes to carbon dioxide after a decade or two.
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
692: Consider the following statements:
1. India is the second country in the world to adopt a National Family Planning Programme.
2. The National Population Policy of India 2000 seeks to achieve replacement level of fertility by 2010 with a population of 111 crores.
3. Kerala is the first State in India to achieve replacement level of fertility.
Which of the statements given above is/are correct?
(a) 1 only
(b) 1 and 2
(c) 2 and 3
(d) 1, 2 and 3
693: Diamond and Emerald contain:
(a) Carbon and silicon
(b) Carbon and zinc
(c) Silicon, aluminium and beryllium
(d) Carbon and calcium
694: Among the following cities, which one is at the highest altitude above mean sea level?
(a) Bangalore
(b) Delhi
(c) Jodhpur
(d) Nagpur
695: The Allahabad Pillar inscription is associated with which one of the following?
(a) Mahapadma Nanda
(b) Chandragupta Maurya
(c) Ashoka
(d) Samudragupta