1. Smog is...

• A type of acid rain
• A chemical reaction between the water in the air, pollution and the sun.
• A type of cloud

2. Acid precipitation is when....

• Rain or snow have become acidic from pollution.
• When rain or snow have become more basic or alkaline because of pollution.
• A type of air mass

3. One way to reduce air pollution is to turn off the lights when we dont use them.

• False
• True

4. Taking a bath once every 3 days will help reduce air pollution.

• False
• True

5. The PH scale measures...

• How fast the wind speed is on a particular day.
• The amount of air pressure
• How acidic or basic a substance is.

6. Which layer of the atmosphere has the ozone gases?

• The troposphere
• The stratosphere
• The thermosphere

7. Carbon mixes with water to create a(n)______.

• Alkaline water
• Warm water
• Acidic water

8. According to Mr. Luna, which country from the list is the MOST polluting?

• Los Angeles
• California
• United States
• China

What is the PH Scale used for?

• It is a graph that tells you if water has neutrons
• It tells you if a solution is an acid, base or neutral
• It tells you how many Potassium is in water

Water is a _____on the PH scale.

• 1
• 7
• 14