461: The national income of a country in a given period is equal to the
(a) total value of goods and services produced by the nationals
(b) sum of total consumption and investment expenditure
(c) sum of personal income of all individuals
(d) money value of final goods and services produced
462: Which one of following is produced during the formation of photochemical smog?
(a) Hydrocarbons
(b) Nitrogen Oxides
(c) Ozone
(d) Methane
463: Biologists have so far known, found and certified a large number of species in the plant and animal kingdom. In terms of members, the largest found and identified so far are from among the
(a) Fungi
(b) Plants
(c) Insects
(d) Bacteria
464: Living organisms require at least 27 elements of which 15 are metals. Among these, those required in major quantities include
(a) Potassium, Manganese, Molybdenum & Calcium
(b) Potassium, Molybdenum, Copper & Calcium
(c) Potassium, Sodium, Magnesium & Calcium
(d) Sodium, Magnesium, Copper & Manganese
465: Ajanta paintings depict:
(a) Ramayana
(b) Mahabharata
(c) Jatakas
(d) Panchatantra