4576: There is a concern over the increase in harmful algal blooms in the seawaters of India. What could be the causative factors for this phenomenon?
1. Discharge of nutrients from the estuaries.
2. Run-off from the land during the monsoon.
3. Upwelling in the seas.
Select the Correct answer from the codes given below:
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
4577: The sensation of fatigue in the muscles after prolonged strenuous physical work is caused by
(a) a decrease in the supply of oxygen
(b) minor wear and tear of muscle fibres
(c) the depletion of glucose
(d) the accumulation of lactic acid
4578: The national motto of India, Satyameva Jayate inscribed below the Emblem of India is taken from
(a) Katha Upanishad
(b) Chandogya Upanishad
(c) Aitareya Upanishad
(d) Mundaka Upanishad
4579: A grocer bought 10 kg of apples for Rs. 81 out of which one kg was found rotten. If he wishes to make a profit of 10%, at what rate per kg. he should sell it?
(a) Rs. 9.00
(b) Rs. 9.90
(c) Rs. 10.10
(d) Rs. 10.20
4580: That the per capita income in India was Rs. 20 in 1867-68, was ascertained for the first time by
(a) M. G. Ranade
(b) Sir W. Hunter
(c) R. C. Dutta
(d) Dadabhai Naoroji