If your floor really needs more than that, consider a low-cost alternative to refinishing: Apply a fresh topcoat of nonyellowing polyurethane, found in the flooring section of a home improvement store. Be sure to very lightly sand the floors with a pole sander and fine-grit sandpaper.
There are 440 different species of sharks in the world today classified into eight different orders described below with some examples of known sharks species for each group.
How many people are in the whole world? Quick Answer. As of September 2014, there are 7.25 billion people in the world. The population of the world is currently growing at a rate of 1.4 percent per year, which translates to an estimated 80 million people a year.