What are the social economic and environmental impacts of a bushfire?

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.

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic

What are the 28 countries in the eu?