Answer: Electricity
Notes: How sensitive the demand for a commodity is to changes in other economic variables is called demand elasticity. The demand for goods having more than one use is said to be elastic. Electricity can be used for many purposes like heating, lighting, cooking, cooling etc. If electricity bill rises then electricity will be used only for important essential purposes and if bill falls then electricity will be used for other unimportant uses thus the demand for electricity is elastic.
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