Directions: answer the following question by writing the letter only.

_____1. Pollution that is often overlook.

a. air pollution b. Noise pollution c. Water pollution d. Land pollution

_____2. One person’s action has the potential to affect others and environment, these

actions are better known as_____________

a. pollutants b. pollution c. people d. noise pollution

_____3. Which sound can be considered at noise?

a. flying airplane b. whisper c. soft music d. hummingbird

_____4. It is the action or process of making land, water, air, etc., dirty, and not safe or

suitable to use.

a. rodents b. Pets c. Pollution d. Transmission

_____5. Planting tree can help reduce noise by absorbing____

a. air b. sound c. water d. oxygen​