What is Carbon cycle?
Topic: Carbon cycle Introduction: Carbon moves from the atmosphere to plants. Carbon moves from plants to animals and Carbon moves from plants and animals to soils. Explanation: The carbon cycle describes how carbon transfers between different reservoirs located on Earth. It describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change. Assessment: 1. This factor contributes to the carbon cycle (a) fossil fuel combustion (b) respiration (c) photosynthesis (d) all of these Answer: (d) 2. The source of carbon to plants in the carbon cycle is (a) fossil fuels (b) carbonate rocks (c) atmospheric carbon dioxide (d) all of the above Answer: (c) 3. In the carbon cycle, the human body returns carbon to the atmosphere through this way: (a) formation of g...