Replacing old incandescent light bulbs with LED (Light ... | Green Warrior Class 5

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"?
(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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