Related Terms and Acronyms: 1  amortization Amortization refers to the process of gradually paying down the principal of a loan. 2  biweekly accelerated payment A mortgage that schedules payments every two weeks instead of the standard monthly payment. 3  lump sum payment One-time single-sum payment or payout.
Lamb is another good source of vitamin B and protein as are beef, poultry, shellfish, eggs, and dairy products. Foods that are high in protein are the only ones containing significant amounts of natural B12.eafy greens are another natural food source containing lots of B vitamins. Many processed foods and grains, such as cereals and breads, have synthetic versions of this vitamin added into them.
Natural sources of background radiation include: 1  Cosmic rays-radiation that reaches the Earth from space. 2  Rocks and soil-some rocks are radioactive and give off radioactive radon gas.atural sources. Natural sources of background radiation include: 1  Cosmic rays-radiation that reaches the Earth from space. 2  Rocks and soil-some rocks are radioactive and give off radioactive radon gas. 3  Living things-plants absorb radioactive materials from the soil and these pass up the food chain.