5. The energy used by green plants to produce food is an example of light energy being transformed to what
other form of energy?

A. chemical energy
D. mechanical energy
C. heat energy
B. electrical energy

6. Which is the major source of light on Earth?
A. flashlight
B. moon
D. sun
C. street lights

7. Which among the following is an example of heat energy being transformed into mechanical energy?

A. moving cars
B. raising flag
C. trimming grass
D. washing the dishes
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