An atom of element a has 71 protons. what would the element's atomic number be?

Which of the following statements best describes environmental laws in latin america?

Why the moon is not visible from earth during the new moon ?

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.