2041: Which one of the following plants is effective in reducing water pollution and is also useful for producing bio gas ?
(a) Eucalyptus
(b) Water hyacinth
(c) Salvinio
(d) Lotus
2042: A universal donor has the blood group belonging to:
(a) A
(b) B
(c) O
(d) AB
2043: There are three parallel straight lines. Two points A and B are marked on the first line, points C and D are marked on the second line, and points E and F are marked on the third line. Each of these 6 points can move to any position on its respective straight line.
Consider the following statements:
I. The maximum number of triangles that can be drawn by joining these points is 18.
II. The maximum number of triangles that can be drawn by joining these points is zero.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
2044: The major chemical compound found in human kidney stones is
(a) Uric acid
(b) Calcium carbonate
(c) Calcium oxalate
(d) Calcium sulphate
2045: The Asia Pacific Economic Cooperation Forum was held in the year 2001 in
(a) Bangkok
(b) Hongkong
(c) Jakarta
(d) Shanghai