Question

A reservoir is a place where something collects. The carbon cycle has four main reservoirs. Which of the following are carbon cycle reservoirs? (4 points)
Responses

Oceans
Oceans

Terrestrial biosphere (ground)
Terrestrial biosphere (ground)

Atmosphere
Atmosphere

Models
Models

Sediments (dirt)
Sediments (dirt)

Answer 1

The four main carbon cycle reservoirs are:

1. **Oceans** - The oceans store a significant amount of carbon in the form of dissolved carbon dioxide and in marine organisms.

2. **Terrestrial biosphere (ground)** - This includes all living organisms on land and the organic matter in the soil, which store carbon in biomass and organic materials.

3. **Atmosphere** - The atmosphere contains carbon primarily in the form of carbon dioxide (CO2) and methane (CH4).

4. **Sediments (dirt)** - Carbon can be stored in sediments, including fossil fuels like coal, oil, and natural gas, as well as in soils.

**Models** is not a reservoir in the carbon cycle.

So, the correct reservoirs are:
- Oceans
- Terrestrial biosphere (ground)
- Atmosphere
- Sediments (dirt)