4086: In summer, man with excess perspiration feels weak, because of the:
(a) Loss of more water through evaporation
(b) Loss of salts through evaporation
(c) Loss of carbohydrates through evaporation
(d) All factors mentioned above
4087: Three men start together to travel the same way around a circular track of 11 km. Their speeds are 4, 5.5 and 8 kmph respectively. When will they meet at the starting point for the first time?
(A) After 22 hours
(B) After 21 hours
(C) After 11 hours
(D) After 33 hours
4088: Wangari Maathai, the Nobel Prizes winner from Kenya is known for her contribution to which one of the following ?
(a) Child development
(b) Journalism
(c) Sustainable development
(d) International economics
4089: A, B, C, D, E, F and G are members of a family consisting of 4 adults and 3 children, two of whom, F and G are girls, A and D are brothers and A is a doctor. E is an engineer married to one of the brothers and has two children. B is married to D and G is their child. Who is C ?
(a) G's brother
(b) F's father
(c) E's daughter
(d) A's son
4090: In the latter half of the year 2006, in which one of the following countries did a military coup take place?
(A) Thailand
(B) Vietnam
(C) Cambodia
(D) Laos