2626: With reference to Indian agriculture, which one of the following statements is correct?
(a) About 90 per cent of the area under pulses in India is rainfed.
(b) The share of pulses in the gross cropped area at the national level has double in the last two decades
(c) India accounts for about 15 per cent of the total area under rice in the world
(d) Rice occupies about 34 per cent of the gross cropped area of India
2627: Consider the following phenomena :
1. Light is affected by gravity.
2. The Universe is constantly expanding.
3. Matter warps its surrounding space-time.
Which of the above is/are the prediction/predictions of Albert Einstein's General Theory of Relativity, often discussed in media ?
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
2628: Which one of the following statements is not correct?
(a) Gulfs with narrow fronts and wider rears experience high tides.
(b) Tidal currents take place when a gulf is connected with the open sea by a narrow channel.
(c) Tidal bore occurs when a tide enters the narrow and shallow estuary of a river.
(d) The tidal nature of the mouth of the river Hooghly is of crucial importance to Kolkata as port.
2629: The memory of a computer is commonly expressed in terms of Kilobytes or Megabytes. A byte is made up of
(a) eight binary digits
(b) eight decimal digits
(c) two binary digits
(d) two decimal digits
2630: Living organisms require at least 27 elements of which 15 are metals. Among these, those required in major quantities include
(a) Potassium, Manganese, Molybdenum & Calcium
(b) Potassium, Molybdenum, Copper & Calcium
(c) Potassium, Sodium, Magnesium & Calcium
(d) Sodium, Magnesium, Copper & Manganese