Carbon Cycle Review: Standard

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged between the atmosphere, land, water, and living organisms. It involves processes like photosynthesis, respiration, decomposition, and combustion.

Front

What role do ice cores play in studying past carbon dioxide levels?

Back

Ice cores contain trapped air bubbles that preserve ancient atmospheres, allowing scientists to analyze past carbon dioxide levels over hundreds of thousands of years.

Front

How does increased carbon dioxide concentration affect global temperatures?

Back

As carbon dioxide concentrations increase, global temperatures tend to rise due to the greenhouse effect, where CO2 traps heat in the atmosphere.

Front

What process removes carbon dioxide from the atmosphere?

Back

Photosynthesis is the process that removes carbon dioxide from the atmosphere, as plants convert CO2 into oxygen and glucose.

Front

What is respiration in the context of the carbon cycle?

Back

Respiration is the process by which living organisms convert oxygen and glucose into energy, releasing carbon dioxide back into the atmosphere.

Front

What is the significance of volcanic eruptions in the carbon cycle?

Back

Volcanic eruptions release carbon dioxide and other gases into the atmosphere, contributing to the natural carbon cycle.

Front

What is subduction and how does it relate to carbon?

Back

Subduction is the geological process where one tectonic plate moves under another, which can lead to the storage of carbon in the Earth's mantle, thus not adding carbon to the atmosphere.

Front

What is the role of trees in the carbon cycle?

Back

Trees absorb carbon dioxide during photosynthesis, acting as carbon sinks and helping to regulate atmospheric CO2 levels.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases like carbon dioxide in the atmosphere.

Front

What is the difference between carbon sources and carbon sinks?

Back

Carbon sources release carbon dioxide into the atmosphere (e.g., burning fossil fuels), while carbon sinks absorb carbon dioxide (e.g., forests, oceans).