Air Pollution

Which substance is not an air pollutant?

• carbon monoxide

• nitrogen

• particulate matter

• sulfur dioxide

Some processes that produce pollutants are:

1) burning of fossil fuels

2) lightning

3) volcanic eruptions.

Which processes produce sulfur dioxide?

• 1 and 2 only

• 1 and 3 only

• 2 and 3 only

• 1, 2 and 3

The Pollutant Standards Index (PSI) measures air quality.

Which statement is correct?

• A lower PSI value shows better air quality than a higher PSI value.

• In Singapore, the PSI is measured only when there is haze.

• The PSI is based only on the level of carbon dioxide in the air.

• The PSI is based only on the level of soot in the air.

______ such as air and water support life processes.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

We need clean air to stay _______.

Tags

NGSS.MS-LS1-5

Many human activities _______ the air we breathe.

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

We need to take action to ______ air pollution.

Tags

NGSS.MS-ESS3-3

Which Pollutant Standards Index (PSI) shows that the air quality is unhealthy?

• 0-50

• 51-100

• 101-200

• 201-300

• Above 300

Which Pollutant Standards Index (PSI) shows that the air quality is hazardous?

• 0-50

• 51-100

• 101-200

• 201-300

• Above 300

Which Pollutant Standards Index (PSI) shows that the air quality is moderate?

• 0-50

• 51-100

• 101-200

• 201-300

• Above 300