436: Assertion (A): To orbit around the Sun, the planet Mars takes lesser time than the time taken by the Earth.
Reason (R) : The diameter of the Planet Mars is less than that of the Earth.
(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
437: The easiest way of finding out the nutritional status for large number of children in a short time is by:
(a) Studying their behaviour
(b) Studying their hair, face and eyes
(c) Measuring their height and weight
(d) All of the above
438: Which one of the following is not a feature of Indian federalism?
(a) There is an independent judiciary in India.
(b) Powers have been clearly divided between the Centre and the States.
(c) The federating units have been given unequal representation in the Rajya Sabha.
(d) It is the result of an agreement among the federating units.
439: The river shown on the map is
(a) Irrawaddy
(b) Mekong
(c) Chao Phraya
(d) Salween
440: Micro-elements needed to increase soil fertility are:
(a) Nitrogen, hydrogen and calcium
(b) Nitrogen, phosphorus and potassium
(c) Iron, calcium and potassium
(d) Manganese, copper and zinc