3. Why does sound become weaker or fainter as it moves away from the observer?
A. The sound is lowered by the operator.
B. The sound spread to cover a smaller area.
C. The sound spreads to cover a larger area.
D. The sound is already absorbed by the environment.

4. Which pair of words is true?
A. Flute: loudest sound
B. Cricket: no sound
C. Whisper: soft sound
D. Ambulance’s siren: soft sound

5. Which is true about the characteristics of sound?
A. Sound could either be soft and loud.
B. The loudness of sound decreases as it moves nearer the observer.
C. Sound is not heard when it is exactly on the same spot as the listener.
D. The loudness of sound increases as it moves away from the observer.


Nonsense = REPORTED!
Copied = PLAGIARIZED!
Thanks in advance