Is it true the heat from the sun can reach the earth through conviction

Is a hamster and guinea pig part of the same species ?

The deserts of the sahara and australia are associated with

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.