AP BIOLOGY

Detailed explanation-1: -These animals and plants eventually die, and upon decomposing, carbon is released back into the atmosphere. Some of the carbon that is not released back into the atmosphere eventually become fossil fuels.

Detailed explanation-2: -What are fossil fuels? 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. They are non-renewable and currently supply around 80% of the world’s energy.

Detailed explanation-3: -Humans play a major role in the carbon cycle through activities such as the burning of fossil fuels or land development.

Detailed explanation-4: -There are six main processes in the carbon cycle: photosynthesis, respiration, exchange, sedimentation, extraction, and combustion. Most of these deal with carbon in the form of CO2 [7]. In photosynthesis energy produced by the Sun is transported to the Earth where it is consumed by primary producers such as plants.

Detailed explanation-5: -The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of Earth.