An example of a carbon sink is a forest. Forests absorb significant amounts of carbon dioxide (CO₂) from the atmosphere during photosynthesis, storing carbon in their biomass (trunks, branches, and leaves) and soil. This process helps mitigate climate change by reducing atmospheric CO₂ levels. Other examples of carbon sinks include oceans and wetlands, which also play vital roles in capturing and sequestering carbon, thus contributing to global carbon cycles and promoting ecological balance.