Which choice lists one destructive and one constructive force that create new landforms? constructive: volcano; destructive: erosion
constructive: hurricane; destructive: earthquake
constructive: human activity; destructive: wind and water
constructive: weathering; destructive: landslides

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.