31: Itaipu Dam built on the River Parana is one of the largest dams in the world. Which of the following two countries have this as a joint project?
(a) Colombia and Paraguay
(b) Paraguay and Ecuador
(c) Brazil and Paraguay
(d) Brazil and Peru
32: The first metal used by the man was:
(a) Iron
(b) Copper
(c) Aluminium
(d) Gold
33: Which is not the Indo-Aryan language ?
(a) Gujarati
(b) Tamil
(c) Oriya
(d) Marathi
34: Maximum production of paddy per unit water consumption can be best achieved in a:
(a) Non-porous soil
(b) Porous soil
(c) Impervious soil
(d) Soil that allows slow percolation
35: Which one of the following was the largest IT software and services exporter in India during the year 2002-03?
(a) Birlasoft
(b) Infosys Technologies
(c) Tata Consultancy Services
(d) Wipro Technologies