2426: Consider the following minerals:
1. Calcium
2. Iron
3. Sodium
Which of the minerals given above is/are required by human body for the concentration of muscles?
(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
2427: If Amsterdam is X + 1, Montreal is X - 5, Tokyo is X + 9 and Lisbon is X, X denotes
(a) GMT
(b) The temperature as measured by the Kelvin scale to arrive at the temperature as measured by the Celsius s
(c) Base from which height and depth from the sea-level is measured
(d) The figure to be used for converting the Imperial System to the Metric System
2428: The chemical name of 'Aspirin' is:
(a) Acetyl cynamide
(b) Acetyl salicylic acid
(c) Benzyl salicylate
(d) Tartaric acid
2429: Other than resistance to pests, what are the prospects for which genetically engineered plants have been created?
1. To enable them to withstand drought
2. To increase the nutritive value of the produce
3. To enable them to grow and do photosynthesis in spaceships and space stations
4. To increase their shelf life
Select the correct answer using the codes given below :
(a) 1 and 2 only
(b) 3 and 4 only
(c) 1, 2 and 4 only
(d) 1, 2, 3 and 4
2430: 6 equiddistant vertical lines are drawn on a board. 6 equidistant horizontal line are also drawn on the board cutting the 6 vertical lines, and the distance between any two consecutive horizontal lines is equal to that between any two consecutive vertical lines. What is maximum number of squares thus formed ?
(A) 56
(B) 44
(C) 37
(D) 55