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.
If carbon does not enter land plants by photosynthesis, it can be taken into the ocean. One of the biggest reservoirs of carbon is the atmosphere, which is about 0.038% carbon dioxide. There are two ways for carbon to be removed from the atmosphere.