What role does the carbon cycle play in carbon sequestration?

The carbon cycle is a fundamental ecological process that helps regulate the amount of carbon in the atmosphere and the Earth's systems. Carbon sequestration, which refers to the process of capturing and storing atmospheric carbon dioxide (CO2), is a crucial aspect of the carbon cycle. The correct choice highlights that during carbon sequestration, CO2 is stored in terrestrial (land-based) and aquatic (water-based) systems.

In various ecosystems, carbon is absorbed by plants through photosynthesis, where it becomes part of the plant's biomass. Additionally, when plants die, their carbon is incorporated into the soil as organic matter, which can be stored for long periods, effectively sequestering carbon. Aquatic systems, such as oceans and wetlands, also play a vital role by absorbing CO2 from the atmosphere, further contributing to carbon storage.

This process of capturing and storing carbon is essential for mitigating climate change, as it reduces the amount of CO2, a greenhouse gas, in the atmosphere. Thus, the role of the carbon cycle in carbon sequestration is critical in managing carbon levels and promoting healthier ecosystems.