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.
While many believe the number of languages in the world is about 6,500, according to Ethnologue, there are 7,106 living languages as of 2014. Although this number might be the latest count, there is no one clear answer as to the exact number of languages that still exist. The question of how many languages there in the world has always been surrounded by uncertainty. While we might assume that linguists have a definite idea of the exact number, as it turns out, there are many different reasons why determining a full count of world languages is so difficult.