How does the carbon becomes locked inside of the earth?

Carbon becomes locked inside the Earth through processes like sedimentation, where organic matter gets buried deep underground and transformed into fossil fuels over millions of years. Another way is through the weathering of rocks, which incorporates carbon into minerals that can be stored in Earth's mantle for long periods of time. Additionally, carbon can also be sequestered through the process of subduction, where tectonic plates carry carbon-rich rocks deep into the Earth's interior.