To determine where you will go next, generate a random number using the random number generator below. Then click on the button of the same number you received from the number generator. You will received instructions, which may take you out of the Lithosphere– Limestone or have you remain inside the Lithosphere– Limestone. Regardless of your card, you should write down the information on your sheet. If you are remaining in the Lithosphere– Limestone, repeat the process of generating a random number described above. A card indicating that you are staying in the same reservoir just indicates that you, as a carbon molecule, are remaining there for a long period of time.