AP BIOLOGY

Detailed explanation-1: -Photosynthesis, Decomposition, Respiration and Combustion. Carbon cycles from the atmosphere into plants and living things. For example, carbon is a pollutant in the atmosphere as carbon dioxide.

Detailed explanation-2: -Fossil fuels are formed from the decomposition of buried carbon-based organisms that died millions of years ago. They create carbon-rich deposits that are extracted and burned for energy.

Detailed explanation-3: -The carbon cycle has two components: the fast carbon cycle and the slow carbon cycle. The fast cycle involves biological processes, such as photosynthesis and decomposition, while the slow cycle involves transitions of inorganic carbon, such as the weathering of rocks and soils.

Detailed explanation-4: -Humans play a major role in the carbon cycle through activities such as the burning of fossil fuels or land development. As a result, the amount of carbon dioxide in the atmosphere is rapidly rising; it is already considerably greater than at any time in the last 3.6 million years.