Electricity is one of the greatest inventions of all times. It is mostly generated by using coal, natural gas and petroleum, which are exhaustible resources. Can you imagine the human society without electricity? This may happen in future, when all energy resources will be exhausted. Explain the values that can change this possible dark scenario.
Values that can change the possible dark scenario of electricity –
(i) Sustainable development of energy resources .
(ii)Maximum use of renewable energy sources such as Solar, Wind, hydro geothermal and biomass.
(iii)Optimum use of energy resources and minimum wastage.
What is medical tourism ? Explain the scope of medical services for overseas patients in India.
Which is the longest trans-continental railway of North America ? Describe its any four features.
Define the term ‘growth of population’. Describe the third (III) phase of growth of population in India.
Explain the importance of foodgrains in the Indian agricultural economy. Describe any three characteristics of rice cultivation.
‘‘Indian railways brought people of diverse cultures together.’’ Support this statement with suitable examples.
