231: The "Red Data Books" published by the International Union for Conservation of Nature and Natural Resources (IUCN) contain lists of
1. Endemic plant and animal species present in the biodiversity hotspots.
2. Threatened plant and animal species.
3. Protected sites for conservation of nature and natural resources in various countries.
Select the correct answer using the codes given below :
(a) 1 and 3
(b) 2 only
(c) 2 and 3
(d) 3 only
232: The first metal used by the man was:
(a) Iron
(b) Copper
(c) Aluminium
(d) Gold
233: Among the following organisms, which one does not belong to the class of other three ?
(a) Crab
(b) Mite
(c) Scorpion
(d) Spider
234: The Partnership for Action on Green Economy (PAGE), a UN mechanism to assist countries transition towards greener and more inclusive economies, emerged at
(a) The Earth Summit on Sustainable Development 2002, Johannesburg
(b) The United Nations Conference on Sustainable Development 2012, Rio de Janeiro
(c) The United Nations Framework Convention on Climate Change 2015, Paris
(d) The World Sustainable Development Summit 2016, New Delhi
235: Which one of the following is in the correct sequential order in which these appeared under simulated primitive earth condition ?
(a) Methane, Hydrogen cyanide, nitriles, aminoacids
(b) Hydrogen cyanide, methane, nitriles, aminoacids
(c) Aminoacids, nitriles. Hydrogen cyanide, methane
(d) Nitriles, aminoacids, methane, Hydrogen cyanide