Which of the class pyramids above correctly shows the race-based class system used in the spanish colonies in the americas? a. one (1) b. two (2) c. three (3) d. four (4)

Computer models can scientists predict weather. some computer models can show the predicted path of hurricanes. what other events could a computer model warn us of? a) undersea earthquakes , tornadoes, and avalanches b) tornadoes c) avalanches d) undersea earthquakes

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.

Which domain endings indicate websites that are most likely to be reliable sources? check all that apply. sites ending in .net