3871: 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
3872: Octopus is
(a) an arthropod
(b) an echinoderm
(c) a heimchordate
(d) a mollusc
3873: Who among the following attended all the three Round Table Conferences?
(a) Madan Mohan Malaviya
(b) Mahatma Gandhi
(c) Sarojini Naidu
(d) B. R. Ambedkar
3874: Consider the following statements:
1. Regarding the procurement of food grains, Government of India follows a procurement target rather than an open-ended procurement policy.
2. Government of India announces minimum support prices only for cereals.
3. For distribution under Targeted Public Distribution System (TPDS), wheat and rice are issued by the Government of India at uniform Central issue prices to the States/ Union Territories.
Which of the statements given above is/ are correct?
(a) 1 and 2
(b) 2 only
(c) 1 and 3
(d) 3 only
3875: Diffusion of light in the atmosphere takes place due to
(a) Carbon dioxide
(b) Dust particles
(c) Helium
(d) Water vapours