1986: The average height of 2 students in a class is 115 cm. Ten more students with an average height of 130 cm join them. Therefore, the average height of the group of students now becomes:
(a) 110 cm
(b) 120 cm
(c) 130 cm
(d) 140 cm
1987: Which one of the following statements is not correct?
(a) There is no definition of the Scheduled Tribe in the Constitution of India.
(b) North-East India accounts for a little over half of the countrys tribal population.
(c) The people known as Todas live in the Nilgiri area.
(d) Lotha is a language spoken in Nagaland.
1988: Berber speaking community, frequently in the news, lives in
(a) Afghanistan
(b) Algeria
(c) Argentina
(d) Australia
1989: Consider the following areas:
1. Bandipur
2. Bhitarkanika
3. Manas
4. Sunderbans
Which of the above are Tiger Reserves?
(a) 1 and 2 only
(b) 1, 3 and 4 only
(c) 2, 3 and 4 only
(d) l, 2, 3 and 4
1990: Physico-chemical characteristics of water in water sources undergo changes due to
(a) aquatic macrophytes
(b) aquatic fungi
(c) effluents
(d) evapotranspiration