What are the two main ways of generating electricity? How are they different from each other? Explain.
Name the non-metallic mineral which can be split easily into thin sheets. Mention its uses.
Why are efficient means of transport pre-requisites for the fast development of the country? Explain.
Efficient means of transport are pre-requisites for the fast development of the country because:
(a) Road transport is economical in transportation of few persons and relatively smaller amount of goods over short distances.
(b) Waterways are most suitable for carrying heavy and bulky goods.
(c) Railways make it possible to conduct multifarious activities like business and transportation of goods over longer distances.
Explain the conditions that were viewed as obstacles to the economic exchange and growth by the new commercial classes during the nineteenth century in Europe.
OR
How did students in Vietnam fight against the colonial government's efforts to prevent Vietnamese from qualifying for 'white collar jobs'? Explain.
Why did Gandhiji decide to launch a nationwide Satyagraha against the proposed Rowlatt Act, 1919? Explain.