461: The Prime Minister of which one of the following countries is chosen by the ruling prince from a slate of three candidates put up to him by the President of France ?
(a) San Marius
(b) Liechtenstein
(c) Malta
(d) Monaco
462: A man whose blood group is not known meets with a serious accident and needs blood transfusion immediately. Which one of the blood groups mentioned below and readily available in the hospital will be safe for transfusion ?
(a) O, Rh-
(b) O, Rh+
(c) AB, Rh-
(d) AB, Rh+
463: Assertion (A): River Kalinadi is an east flowing river in the southern part of India.
Reason(R): The Deccan Plateau is higher along its western edge and gently slopes towards the bay of Bengal in the east.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually 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
464: When a CD (Compact Disc used in audio and video systems) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of the phenomenon of
(a) reflection and diffraction
(b) reflection and transmission
(c) diffraction and transmission
(d) refraction, diffraction and transmission
465: The most important strategy for the conservation of biodiversity together with traditional human life is the establishment of
(a) biosphere reserves
(b) botanical gardens
(c) national parks
(d) wildlife sanctuaries