Topic 6: Atmosphere IB ESS

Front

What is the purpose of adding lime to lakes in Sweden?

Back

Lime is added to increase pH.

Front

What are the characteristics of urban areas with high levels of photochemical smog?

Back

Calm winds, dry weather, sunny, many industries and vehicles, often located in a basin or surrounded by mountains.

Front

What technology is used to remove sulfur from coal during combustion?

Back

Fluidized bed technology.

Front

Which compound contributes to acid rain?

Back

SO₂ (sulfur dioxide).

Front

What is a photochemical reaction?

Back

A reaction which is catalyzed by light or dependent on light for the reaction to occur.

Front

What is photochemical smog?

Back

A type of air pollution that is formed when sunlight reacts with pollutants such as volatile organic compounds (VOCs) and nitrogen oxides (NOx).

Front

What are the main components of the atmosphere?

Back

Nitrogen (78%), Oxygen (21%), Argon (0.93%), Carbon Dioxide (0.04%), and trace gases.

Front

What is the greenhouse effect?

Back

The process by which certain gases in the Earth's atmosphere trap heat, preventing it from escaping into space.

Front

What is acid rain?

Back

Rain that has been made acidic by pollutants in the atmosphere, primarily sulfur dioxide (SO₂) and nitrogen oxides (NOx).

Front

What role do trees play in the atmosphere?

Back

Trees absorb carbon dioxide and release oxygen, helping to regulate the atmosphere's composition.