Which best describes vietnam's economy today?
a.) market economy policies have led to a sizable middle class
b.) a democratic government resulted in economic reform
c.) the economy is based completely on agriculture
d.) communist economic policies have ruined the economy

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.

What is one early technological advance that shaped culture? a the use of fire b the discovery of arable land c family units. d migration

Put these ecosystems in order of least biodiversity to most biodiversity 1. mediterranean forest 2. indonesian rain forest 3. arctic ocean