FINAL EXAM ENV. SYS. 2024 M

Front

What is deforestation?

Back

The clearing or thinning of forests by humans, which can lead to increased carbon dioxide levels in the atmosphere.

Front

How does deforestation contribute to global warming?

Back

By increasing carbon dioxide levels, which enhances the greenhouse effect.

Front

What are greenhouse gases?

Back

Gases in the atmosphere that trap heat, including carbon dioxide, methane, and nitrous oxide.

Front

What is the primary cause of global warming?

Back

The increase in greenhouse gases due to human activities such as burning fossil fuels and deforestation.

Front

What is energy transfer in an ecosystem?

Back

The movement of energy through a food chain, where only about 10% of energy is transferred to the next trophic level.

Front

What happens to the remaining 90% of energy in a trophic level?

Back

It is converted to heat energy and lost to the environment.

Front

What are primary consumers?

Back

Organisms that eat producers (plants), such as herbivores like rabbits.

Front

What are secondary air pollutants?

Back

Pollutants that are not emitted directly but form in the atmosphere through chemical reactions, such as ozone and acid rain.

Front

What is acid rain?

Back

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

Front

What is the role of ozone in the atmosphere?

Back

Ozone in the stratosphere protects living organisms from harmful ultraviolet (UV) radiation.