Carbon Cycle and Energy Security 6.1

A store is...

• where carbon is held

• where carbon is transferred or flows

A flux is...

• a flow or transfer from one store to another

• where carbon is held.

What are the main forms of carbon in the atmosphere?

• living and dead organisms

• dissolved carbon dioxide

• carbon dioxide and methane

• carbonates in limestone and fossil fuels

What are the main forms of carbon in the hydrosphere?

• carbon dioxide and methane

• living and dead organisms

• carbonates in limestone and fossil fuels

• dissolved carbon dioxide

What are the main forms of carbon in the lithosphere?

• carbonates in limestone and fossil fuels

• dissolved carbon dioxide

• carbon dioxide and methane

• living and dead organisms

What are the main forms of carbon in the biosphere?

• carbon dioxide and methane

• dissolved carbon dioxide

• carbonates in limestone and fossil fuels

• living and dead organisms

A reservior turnover of geological carbon is the rate at which carbon enters and leaves a store. It ranges from around 100,000 to 100 million years.

• TRUE

• FALSE