Mechanization has greatly increased the number of people engaged in agricultural in the united states since 1950 true false

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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 types of seismic waves travel through earths interior? select all that apply. a) l waves b) p waves c) s waves