ES - Ch. 17 Review 2022

What is a carbon sink?

• something that releases carbon

• place that stores carbon

Identify two examples of a carbon sinks.

• plants

• coal

• oil

• ocean

What is a carbon source?

• something that releases carbon

• place that stores carbon

Identify two examples of a carbon sources.

• plants

• coal

• oil

• ocean

What caused Earth's eariest atmosphere?

• photosynthesis

• volcanic gases

• gases released from oceans

• oxygen cycle

What caused oxygen levels in the atmosphere to increase over time?

• pollution

• respiration

• photosynthesis

• volcanic gases

What two gases make up most of Earth's current atmosphere?

• nitrogen and ozone

• carbon dioxide and oxygen

• carbon dioxide and nitrogen

• nitrogen and oxygen

Which cycle does not release any gas into the atmosphere?

• oxygen cycle

• nitrogen cycle

• carbon cycle

• phosphorous cycle

Identify three Greenhouse gases.

• water vapor

• nitrogen

• carbon dioxide

• methane

What are we putting into the atmosphere which is leading to global warming?

• sulfur dioxide

• crude oil

• peat

• carbon dioxide