Read the list of substances. air, copper, glass, gold, wood which substances have high electrical conductivity? air and copper air and glass copper and glass copper and gold

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 intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell