2126: Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity?
(a) They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency.
(b) They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy.
(c) They neutralize the free radicals produced in the body during metabolism.
(d) They activate certain genes in the cells of the body and help delay the ageing process.
2127: Who among the following were famous jurists of medieval India ?
I. Vijnanesvara
II. Hemadri
III. Rajasekhara
IV. Jimutavahana
Choose the correct answer from the codes given below :
Codes :
(a) I, II and III
(b) II, III and IV
(c) I, II and IV
(d) I and IV
2128: A radioactive substance has a half-life of four months. Three-fourth of the substance would decay in
(a) 3 months
(b) 4 months
(c) 8 months
(d) 12 months
2129: Which one of the following Articles of the Directive Principles of State Policy deals with the promotion of international peace and security?
(a) 51
(b) 48 A
(c) 43 A
(d) 41
2130: Bharat Ratna was awarded in 1997 to
(a) Dr. Homi Bhabha (Posthumous)
(b) Former President R. Venkataraman
(c) Satyajit Ray (Posthumous)
(d) Dr. Abdul Kalam