Quizlet is a great flashcard site that helps you create your own flashcards, and provides you with some great ready-made flashcards as well. As an ESL teacher, I find it to be very useful, especially for students who are not native speakers and do not have anybody at home to help them with their vocabulary.
The atmosphere, the ocean, and the terrestrial biosphere. Carbon can be found in the earths oceanic and continental crust in different types of stones as well as in the soil from the decay of organic matter.
It is stored in biomass, organic matter in sediments, and in carbonate rocks like limestone. The Carbon Cycle. The primary source of carbon/CO 2 is outgassing from the Earth's interior at midocean ridges, hotspot volcanoes, and subduction-related volcanic arcs. Much of the CO 2 released at subduction zones is derived from the metamorphism of carbonate rocks subducting with the ocean crust.