1. The following are examples of
materials that transmit light.
Which one is not useful? *
A. eye glasses
B. drinking glass
C. magnifying lens
D. cardboard

2. Why light absorbed by the
plants useful? *

A. It makes the plants green

B. Over expose of plant to light
makes plants die.

C. Light is reflected and increasing
its temperature.

D. It makes the environment cool.​

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