Aattack is the deliberate release of germs or other biological substances into the air or water. many agents must be inhaled; enter through a cut in the skin; or be eaten to be effective.

Who owned most of the resources in a market or capitalistic economy? in a socialist or command economy? what determines ownership in a traditional economy. (economies)

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

What did the pattern of earthquakes in the wadati-benioff seafloor zones show scientists? a.) earthquakes occur where the ocean floor reaches its highest temperatures. b.) many earthquakes take place 700 kilometers below the seafloor. c.) slabs of ocean floor return to the mantle in subduction zones. d.) ocean - trenches cause earthquakes.