2676: The river most mentioned in early Vedic literature is
(a) Sindhu
(b) Sutudri
(c) Sarasvati
(d) Ganga
2677: Among the following, which one lays eggs and does not produce young ones directly?
(a) Kangaroo
(b) Echidna
(c) Whale
(d) Porcupine
2678: Galvanising of sheet iron is done by dipping the sheet metal into molten
(a) Mercury
(b) Cadmium
(c) Lead
(d) Zinc
2679: INSAT-3E, India's communication satellite, was launched in 2003 from:
(a) French Guyana
(b) Seychelles
(c) Mauritius
(d) Mauritania
2680: A class of animals known as Marsupials is a characteristic feature of
(a) Africa
(b) Australia
(c) South America
(d) South-East Asia