Life on our planet is made up of an incredible variety of carbon molecules, and, in essence, life processes are carbon chemistry. Conversely, the carbon cycle, which can be viewed as the movement of carbon atoms through various places of storage on Earth, called reservoirs, is intimately tied to life processes.xamples of reservoirs are the ocean, the atmosphere, the biosphere, the soil carbon, the carbonate sediments, and the organic carbon sediments.. The fluxes between them describe the rate at which atoms move from one reservoir into another.
A loan agreement is: 1  A borrower's written promise to repay a sum of money, or principal, to the lender.  A document that outlines the terms of a loan, including a repayment plan, between a lender and a borrower.
A promissory note or promissory letter is a written and signed agreement between two parties to repay a definite sum of money by a specific time. The terms of a legal promissory note include the amount to be borrowed, any interest to be charged, and the specific terms of repayment. The note must also contain proper identification of the parties and any default provisions should the borrower fail to repay the debt.