Environmental Science Introduction: Air Quality

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What are the two main gases that make up 99% of the air we breathe?

Oxygen and Water Vapour

Nitrogen and Oxygen (correct)

Nitrogen and Carbon Dioxide

Oxygen and Argon

Which gas is essential for the survival of humans and other animals on Earth?

Carbon Dioxide

Argon

Nitrogen

Oxygen (correct)

What process converts nitrogen into nitrates for plant use?

Photosynthesis

Respiration

Decomposition

Nitrogen fixation (correct)

Which gas is not part of the naturally occurring gases in the remaining 1% of air?

Sulfur Dioxide Signup and view all the answers

Why should you not be able to smell clean air according to the text?

Clean air is odorless Signup and view all the answers

What makes pollutants in the air visible according to the text?

They make the air visible Signup and view all the answers

What is the name of the air quality index used in Canada?

Air Quality Health Index (AQHI) Signup and view all the answers

How is air quality measured in terms of pollutants?

By the concentration of certain pollutants in the air Signup and view all the answers

What does a higher number on the AQHI indicate?

Worse air quality Signup and view all the answers

Which country uses the Pollutant Standards Index (PSI) to report air quality?

Singapore Signup and view all the answers

When is it advisable for vulnerable individuals to consult the AQHI daily?

Between May and October Signup and view all the answers

What type of individuals should refrain from strenuous outdoor activities when the AQHI is high?

People with respiratory ailments Signup and view all the answers

Environmental Science Introduction: Air Quality

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Questions and Answers

What are the two main gases that make up 99% of the air we breathe?

Which gas is essential for the survival of humans and other animals on Earth?

What process converts nitrogen into nitrates for plant use?

Which gas is not part of the naturally occurring gases in the remaining 1% of air?

Why should you not be able to smell clean air according to the text?

What makes pollutants in the air visible according to the text?

What is the name of the air quality index used in Canada?

How is air quality measured in terms of pollutants?

What does a higher number on the AQHI indicate?

Which country uses the Pollutant Standards Index (PSI) to report air quality?

When is it advisable for vulnerable individuals to consult the AQHI daily?

What type of individuals should refrain from strenuous outdoor activities when the AQHI is high?

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