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.
The oceans store much more carbon than the atmosphere and the terrestrial biosphere (plants and animals). Even more carbon, howÂ­ever, is stored in the lithosphere, i.e. the rocks on the planet, including limestones (calcium carbonate, CaCO 3).