The Atmosphere - Pearson Chapter 15

Front

What is the composition of the Earth's atmosphere?

Back

The Earth's atmosphere is composed of approximately 78% nitrogen, 21% oxygen, and trace amounts of other gases such as carbon dioxide, argon, and water vapor.

Front

What is the role of oxygen in the atmosphere?

Back

Oxygen is essential for the respiration of most living organisms and is a key component in combustion processes.

Front

What is air pollution?

Back

Air pollution refers to the presence of harmful substances in the atmosphere, which can have adverse effects on health and the environment.

Front

What is the Clean Air Act?

Back

The Clean Air Act is a United States federal law designed to control air pollution on a national level, setting standards for air quality.

Front

What is temperature inversion?

Back

Temperature inversion is a meteorological phenomenon where a layer of cool air is trapped near the ground by a layer of warmer air above, which can lead to increased pollution levels.

Front

What are some common air pollutants?

Back

Common air pollutants include particulate matter, nitrogen oxides, sulfur dioxide, carbon monoxide, and volatile organic compounds.

Front

How do air pollutants contribute to health issues?

Back

Air pollutants can cause respiratory problems, cardiovascular diseases, and can contribute to cancer and other serious health conditions.

Front

What is smog?

Back

Smog is a type of air pollution that is a mixture of smoke and fog, often exacerbated by temperature inversions.

Front

What is acid deposition?

Back

Acid deposition refers to the falling of acids from the atmosphere to the ground, often in the form of rain, snow, or dust, which can harm ecosystems.

Front

What is conduction in the context of the atmosphere?

Back

Conduction is the transfer of heat through direct contact between materials, such as the warming of air near the ground by the sun.