Factors in Population Growth The key factors in population change are natural increase (the number of births minus the number of deaths), net migration, and the interplay between these elements. These factors are in turn driven by fertility rates, the age structure of the population, mortality rates, life expectancy, and rates of in- and out-migration.
Federal law requires that before signing a lease for housing built before 1978, renters must receive the following from your landlord: An EPA-approved information pamphlet on identifying and controlling lead-based paint hazards, Protect Your Family From Lead In Your Home (PDF).
Your vinyl siding is generally safe, as long as you don't spend time licking it or touching it. You can get lead in your body if you drink liquid that contains lead, such as water that has passed through lead pipes. It can also enter through your skin, and, in some cases, you could breathe lead into your lungs.ut vinyl siding Â­isn't the only use for PVC, and all of those toys, fake Christmas trees and carpet that are made of PVC in your home also pose health threats. Find out on the next page why PVC may be phased out of production in the next few years.Â­