76: A rectangle has a perimeter of 50 meters. If its length is 13 metres more than its breadth, then its area is
(a) 124 m2
(b) 144 m2
(c) 114 m2
(d) 104 m2
77: Rigveda, the oldest of the Vedas, chiefly contains:
(a) Collection of hymns to gods
(b) Methods of Vedic yagnas
(c) Early Aryan culture
(d) Origin and works of Hindu gods
78: Which of the following is a characteristic feature of the Indus Valley Civilisation ?
(a) Their chief deities were Mother Goddess and Shiva
(b) They worshipped bulls
(c) They had all amenities of a developed city life
(d) They did not know of iron
79: Operation Flood refers to:
(a) Use of preventive measures for flood devastation
(b) A study about floods
(c) Dairy development for increased milk production
(d) None of these
80: If a wetland of international importance is brought under the Montreux Record, what does it imply?
(a) Changes in ecological character have occurred, are occurring or are likely to occur in the wetland as a result of human interference.
(b) The country in which the wetland is located should enact a law to prohibit any human activity within five kilometers from the edge of the wetland.
(c) The survival of the wetland depends on the cultural practices and traditions of certain communities living in its vicinity and therefore the cultural diversity therein should not be destroyed.
(d) It is given the status of World Heritage Site.