Feedback loops

Phytoplankton play a key role in moving carbon from the short to long term store via

• the positive feedback loop

• the negative feedback loop

• the biological pump

• the physical pump

Which feedback loop is responsible for a system returning to equilibrium?

The process of carbon being transferred from plants to the atmosphere

• evaporation

• transpiration

• respiration

• photosynthesis

What in geography refers to a state of balance within a constantly changing system.

Which process is responsible for the conversion of atmospheric carbon dioxide into organic matter by plants?

• decomposition

• photosynthesis

• combustion

• oxidation

What is the primary role of the oceanic carbon pump in the carbon cycle?

• to release carbon dioxide into the atmosphere

• to store carbon in deep ocean waters

• to convert carbon into fossil fuels

• to increase atmospheric oxygen levels

Which of the following processes contributes to the long-term storage of carbon in the Earth's crust?

• volcanic eruptions

• sedimentation

• deforestation

• urbanization

What is the process by which carbon is transferred from the ocean to the atmosphere?

• evaporation

• diffusion

• precipitation

• condensation

What role do forests play in the carbon cycle?

• They release carbon dioxide through combustion

• They act as carbon sinks by absorbing carbon dioxide

• They increase atmospheric carbon through deforestation

• They convert carbon into fossil fuels