Chapter 13 Holt Environmental Science

Front

What is global warming?

Back

An increase in Earth’s average temperature, resulting from increased greenhouse gases in the atmosphere.

Front

What factors make it difficult to slow global warming?

Back

Economic, political, and social factors.

Front

What greenhouse gas is released from burning fossil fuels?

Back

Carbon dioxide.

Front

Which of the following is not a major greenhouse gas: water vapor, carbon dioxide, sulfur, or methane?

Back

Sulfur.

Front

What did geochemist Charles David Keeling measure in an area away from forests and cities?

Back

The amount of carbon dioxide in the air.

Front

What is a greenhouse gas?

Back

A gas that traps heat in the atmosphere, contributing to the greenhouse effect.

Front

Name a major source of carbon dioxide emissions.

Back

Burning fossil fuels such as coal, oil, and natural gas.

Front

What role do zooplankton play in the ecosystem?

Back

They are a crucial part of the aquatic food web, serving as food for larger animals.

Front

What is the greenhouse effect?

Back

The process by which certain gases trap heat in the atmosphere, keeping the Earth warm.

Front

What is the significance of Mauna Loa, Hawaii, in climate science?

Back

It is a key location for measuring atmospheric carbon dioxide levels.