One. But it is a bit tricky and depends on how you define an edge. Many use the definition of a boundary of a geometric figure. Please see the link to the math forum at Drexel University. There is a lengthy discussion of this topic. A cone has one flat face, one curved face, one vertex and one curved edge. One.
Like most mammals, opossums carry a variety of parasites and diseases harmful to both people and their pets. Control and Removal These pests are mostly transient, but opossums can live under porches, decks, and sheds, startling unsuspecting homeowners.
The Virginia opossum (Didelphis virginianus, Fig. 1) is North America's only marsupial, a primitive mammal that bears its young only partially developed. When baby opossums are born, they are so small that twenty can be held in a teaspoon. Opossums have a high mortality rate at all ages; it is estimated that only 10 percent of weaned opossums survive more than one year. 2  Dogs, coyotes, foxes, raccoons, bobcats, eagles, hawks and owls prey on them, especially the young.