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Question
The use of one of the following is eco-friendly. This one is :
(a) cars for transportation
(b) polybags for shopping
(c) windmills for generating power
(d) dyes for colouring clothes
Solution
(c) windmills for generating power
Windmills use wind to generate electric energy. They do not create any kind of pollution. Thus, they are eco-friendly.
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