646: Which one of the following constitutional Amendments states that the total number of Ministers, including the Prime Minister, in the Council of Ministers shall not exceed fifteen percent of the total number of members of the House of the People?
(a) 90th
(b) 91st
(c) 92nd
(d) 93rd
647: The time taken by the sun to revolve around the centre of our galaxy is
(a) 25 million years
(b) 100 million years
(c) 250 million years
(d) 500 million years
648: For developing inbred lines in farm animals, following factors are taken into consideration :
1. The crossbreds should be of outstanding type.
2. They should not carry any detrimental genes.
3. Progeney tested animals.
4. Herd size should be large.
Of the statements given above, which one of the following combinations of factors is most essential ?
(a) 1 and 3
(b) 2 and 3
(c) 1 and 4
(d) 2 and 4
649: When a money bill is passed by the Parliament, the President has the power to:
(a) Amend it
(b) Reject it
(c) Kept it with him
(d) Return it for reconsideration
650: In the context of ecosystem productivity, marine upwelling zones are important as they increase the marine productivity by bringing the
1. decomposer microorganisms to the surface.
2. nutrients to the surface.
3. bottom-dwelling organisms to the surface.
Which of the statements given above is/are correct ?
(a) 1 and 2
(b) 2 only
(c) 2 and 3
(d) 3 only