66: Consider the following :
I. Saxena, David. Jain and Kumar were District Collectors at places P, Q, R and S respectively in 1970.
II. In 1972 they were transferred. Saxena and Jain interchanged places. Kumar and David also interchanged places.
III. One year later in 1973 they were again transferred such that David and Jain interchanged places and Saxena and Kumar were also interchanged.
What should be the next round of transfers so that all the four persons could have been posted at all the four places ?
(a) Interchange Saxena and David as well as Jain and Kumar
(b) Interchange Saxena and Kumar as well as David and Jain
(c) Interchange David and Kumar as well as Saxena and Jain
(d) It is not possible for all the four persons to have been posted at all the four places
67: Fertility of soil can be improved by:
(a) Removing dead earthworms
(b) Adding dead earthworms
(c) Adding living earthworms
(d) Removing living earthworms and adding dead earthworms
68: Consider the following statements
1. The first woman President of the Indian National Congress was Sarojini Naidu.
2. The first Muslim President of the Indian National Congress was Badruddin Tyabji.
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
69: Assertion (A)
The form of government in Rigvedic period was monarchy
Reason (R)
Priest enjoyed both social and political status and influenced administration
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
70: Life expectancy is highest in the world in
(a) Canada
(b) Germany
(c) Japan
(d) Norway