Sediments deposits consists of carbon reserves in the form of preserved fossils beneath the earth crust. The most important type of reserves of fossils are Coal, oil, and natural gas. These on burning produce carbon dioxide or carbon mono-oxide. The carbon deposits in fossils are due to the carbon entrapped in dead organic matter that deposited beneath the earth and under the impact of pressure and heat got converted into fossils.
A buffer is simply a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid. Buffers work by reacting with any added acid or base to control the pH.
