The Composition of Air

Front

What is the most abundant gas in the air?

Back

Nitrogen is the most abundant gas present in the air, making up about 78% of the atmosphere.

Front

What does polluted air mean?

Back

Polluted air is air that is contaminated with harmful substances, making it unsafe to breathe.

Tags

NGSS.MS-ESS3-3

Front

Which gas is essential for life on Earth?

Back

Oxygen is the only gas that supports life on Earth, as it is necessary for respiration.

Tags

NGSS.HS-LS1-7

Front

What percentage of air is made up of oxygen?

Back

Oxygen makes up about 21% of the air we breathe.

Front

Which gas is considered combustible?

Back

Oxygen is a combustible gas, meaning it supports combustion and is necessary for fire.

Front

What are the main components of air?

Back

The main components of air are nitrogen (78%), oxygen (21%), and trace amounts of other gases like carbon dioxide and argon.

Front

What role does carbon dioxide play in the atmosphere?

Back

Carbon dioxide is a greenhouse gas that helps regulate Earth's temperature and is used by plants during photosynthesis.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What is the function of nitrogen in the air?

Back

Nitrogen is inert and does not support combustion; it helps dilute oxygen in the atmosphere.

Front

How does air pollution affect health?

Back

Air pollution can cause respiratory problems, cardiovascular diseases, and other health issues.

Front

What is the difference between clean air and polluted air?

Back

Clean air is free from harmful substances, while polluted air contains contaminants that can harm health.