What is required for a light bulb to produce light?
garden sunlight concrete an electron lens Power plant adding heat Potted plant sun's heat
A B C D E F G H
Energy is used by power plants to make electricity.
a light bulb requires a power plant to produce light
What is required for a light bulb to produce light? (A) garden (B) sunlight (C) concrete (D) an electron lens (E) Power plant (F) adding heat (G) Potted plant (H) sun's heat