Why do they require high school students to pass the staar test to graduate ?

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 phrase describes the time it takes for a planet to make a complete rotation

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."