Which of the following is the cheapest and environmentally friendly source of electricity?
مندرجہ ذیل میں سے بجلی کا سب سے سستا اور ماحول دوست ذریعہ کون سا ہے؟
Answer: Hydroelectric Power
Explanation
Hydroelectric power is a renewable, cost-effective, and environmentally friendly source of energy.
It utilizes the flow of water to generate electricity, with minimal greenhouse gas emissions once the dam infrastructure is built.
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