Write the energy conversion that takes place in a hydropower plant.
Energy can neither be created nor be destroy but change into one form to other.
This principle works in a hydropower plant. When water falls on the turbine, the stored potential energy is converted into the kinetic energy.
Kinetic energy is converted into electrical energy known as hydro-electricity.
Water is a valuable resource. List two ways that you would suggest every family member to save this resource.
Two ways to save this resource are:
i) Turning-off the taps when not in use.
ii) Frequent checking for the leakage of water pipelines, and getting them repaired.
What is a dam? Why do we seek to build large dams? While building large dams, which three main problems should particularly be addressed to maintain peace among local people? Mention them.
Dam is barrier constructed to store or hold water and raise its level forming reservoir used to generate electricity or as a water supply for irrigation and for other purposes.
Large dams address three problems i.e.
(i) Social problems
(ii) Economic problems
(iii) Environmental problems
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