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.
Promissory Note: A written promise made and signed by a borrower that it will repay loan money it received. Also called a ânote.â Secured Promissory Note: A note in which the borrowerâs promise to pay a certain amount is backed up by certain specified property (called âcollateralâ). If the borrower does not repay, the lender can take the collateral. A lender is more protected under a secured note than under an unsecured note.