Explain why structure of the universe be compared to soap bubbles

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.

The chemical or mechanical process by which rock is gradually broken down eventually becoming soil

How much damage is done by landslides in a typical year in the u.s.?