National parks reduce the human impact on land by a. permitting limited human development. b. cleaning up litter c. preventing human development d. preventing companies from polluting on public lands select the best answer from the choices provided

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

The finches on the galapagos island were similar in form except for variations of their beaks. darwin observed that these variations were useful for: attracting a mate defending territory building nests gathering food