Direction: Identify what is described in each sentences.

______________________1. It is any undesirable sound which disturbs the activities of human or animal life.

______________________2. It is an energy made by vibrations.

______________________3. It refers to how strong the sound seems to us when it reaches our ears.

______________________4. When the vibrations are fast, you hear a _____ sound.

______________________5. When the vibrations are slow, the sound is _____.​