6: Which one of the following is also called Stranger Gas?
(a) Argon
(b) Nitrous oxide
(c) Xenon
(d) Neon
7: In the given figure, the triangle represents girls, the square represents sports persons and the circle represents coaches. The portion in the figure which represents girls who are sports persons but not coaches is the one labelled
(a) A
(b) B
(c) D
(d) E
8: A car travels the first one-third of a certain distance with a speed of 10 km/hr, the next one-third distance with a speed of 20 km/hr and the last one-third distance with a speed of 60 km/hr. The average speed of the car for the whole journey is
(a) 18 km/hr
(b) 24 km/hr
(c) 30 km/hr
(d) 36 km/hr
9: Consider the following :
1. Assessment of land revenue on the basis of nature of the soil and the quality of crops
2. Use of mobile cannons in warfare
3. Cultivation of tobacco and red chillies
Which of the above was/were introduced into India by the English?
(a) 1 only
(b) 1 and 2
(c) 2 and 3
(d) None
10: Which one of the following stars is nearest to the earth ?
(a) Polaris
(b) Alpha Centauri
(c) Sun
(d) Sirius