How does the river discharge
affect the environment ​

Which of the following describes what rocks usually are composed of ,

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.

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand