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 is commonly unsecured, which just means that it's not attached to a physical piece of property. A mortgage loan is a secured debt, meaning that the amount borrowed is backed by the real estate property the borrower purchases.n technical terms, a mortgage loan is a promissory note. The borrower agrees to pay the lender back the principal plus interest over a certain period of time in regular installments. If the borrower fails to pay back the mortgage, the lender can accelerate the debt, meaning that the entire debt becomes due.