601: Seasons on the Earth are caused due to

(a) The elliptical orbit of the Earth

(b) Alteration/change in the speed of revolution of the Earth

(c) Inclination of the Earth on its axis of rotation

(d) Differences in the amount of energy received from the Sun
602: Consider the following:

1. Oxides of Hydrogen

2. Oxides of Nitrogen

3. Oxides of Sulphur

Which of the above causes/cause acid rain ?

(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
603: The foundation of modern educational system in India was laid by

(a) The Charter Act of 1813

(b) Macaulay's Minutes of 1835

(c) The Hunter Commission of 1882

(d) Wood's Despatch of 1854
604: Which one of the following non-metals is not a poor conductor of electricity?

(a) Bromine
(b) Sulphur
(c) Phosphorus
(d) Selenium

605: Elephant Pass, which is frequently in the news, is mentioned in the context of the affairs of which one of the following?

(a) Nepal
(b) India
(c) Sri Lanka
(d) Bangladesh