Comets are most like planets have elliptical orbits
The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Carbon is released back into the atmosphere when organisms die, volcanoes erupt, fires blaze, fossil fuels are burned, and through a variety of other mechanisms.
When a plant forms new tissue at the tips of its roots and Stems, this new tissue growth is a direct result of Cell division.