What are the two main ways of generating electricity? How are they different from each other? Explain.
Electricity is generated mainly in two ways-
(i) Hydro electricity is generated by fast flowing running water, which is a renewable resource. India has a number of multi-purpose projects like the Bhakra Nangal, Damodar Valley Corporation etc. producing hydroelectric power.
(ii) Thermal electricity is generated by burning fuels such as coal, petroleum and natural gas. The thermal power stations use non-renewable fossil fuels for generating electricity.There are over 310 thermal power plants in India.
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.
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.
