1. what economic system is characterized by the exchange of one product for another?
a. currency
b. barter
c. loan
d. free market
2. the communist concept of collectivism in china has
a. declined as private enterprise has fostered a booming economy
b. been reinforced due to levels of poverty
c. been maintained due to strong, chinese religious beliefs
d. been forced onto many chinese peasants by the government because they have little wealth
3. which international initiative aims to put the human race on a path of sustainability?
a. the earth summit
b. agenda 21
c. kyoto protocol
d. dashboard of sustainability
4. to increase the production of crops india relies on this.
a. elimination of immigration restriction laws
b. existing bartering laws
c. advanced methods of irrigation
d. increased use of plant fertilizers
5. unlike most of the asian population, most europeans live,
a. in suburbia
b. in cities
c. in rural areas
d. away from the water
6. w