Green Warrior Class 5 Affordable and Clean Energy

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

Replacing old incandescent light bulbs with LED (Light Emitting Diode) bulbs is a key "Green Warrior" action. Why is this considered "Affordable and Clean"?

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A LED bulbs are bigger and brighter, so they use more power.
B LED bulbs turn 90% of energy into light, while old bulbs waste most energy as heat.
C LED bulbs are made of recycled glass from the ocean.
D LED bulbs only work if you have a solar panel at home.

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Answer: B. LED bulbs turn 90% of energy into light, while old bulbs waste most energy as heat.

Answer: (B)
Simple Explanation: Being "Energy Efficient" means doing the same job (lighting a room) using less electricity. This saves money and reduces the need for power plants to burn fuel.

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Replacing old incandescent light bulbs with LED (Light Emitting Diode) bulbs is a key "Green Warrior" action. Why is this considered "Affordable and Clean"?

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