3791: 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.
3792: Which Mughal ruler introduced the Mansabdari system in India?
(a) Akbar
(b) Humayun
(c) Shahjahan
(d) Babar
3793: The principal language of Nagaland is:
(a) English
(b) Naga
(c) Assamese
(d) Khasi
3794: Which of the following enters human body through skin:
(a) Tapeworm
(b) Hookworm
(c) Ringworm
(d) Threadworm
3795: The surface of the water in a lake is frozen and its temperature is -15°C. The maximum possible temperature of the water inside the lake in contact with the ice layer will be:
(a) 0°C
(b) 4°C
(c) 15°C
(d) Insufficient data to predict