Front

What is the primary component of air?

Back

Nitrogen, which makes up about 78% of the Earth's atmosphere.

Front

What is the role of the ozone layer?

Back

The ozone layer protects the Earth from harmful ultraviolet (UV) radiation from the sun.

Front

What are common sources of air pollution?

Back

Sources include vehicle emissions, industrial discharges, and burning fossil fuels.

Front

What is the significance of carbon dioxide in the atmosphere?

Back

Carbon dioxide is a greenhouse gas that contributes to global warming and climate change.

Front

What is the troposphere?

Back

The troposphere is the lowest layer of the atmosphere, where weather occurs and where most of the air mass is found.

Front

What is air quality?

Back

Air quality refers to the condition of the air within our surroundings, often measured by the presence of pollutants.

Front

What is lead pollution and its historical context?

Back

Lead was commonly used in gasoline and paint until the 1970s, when its harmful effects on health were recognized.

Front

What is the stratosphere?

Back

The stratosphere is the second layer of the atmosphere, located above the troposphere, and contains the ozone layer.

Front

How does deforestation affect air quality?

Back

Deforestation increases carbon dioxide levels in the atmosphere, reducing air quality and contributing to climate change.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of the Earth's surface due to trapped heat by greenhouse gases in the atmosphere.