How do landforms of Central Asia affect where people live?

The oil and gas found in the middle east are regulated by a. organization of petroleum exporting countries b. southwestern asian oil refineries c. north atlantic treaty organization

All of the following are good ways to evaluate written sources of information except:

What is the carrying capacity of an ecosystem for a given population? a. the total number of species in the ecosystem b. the total number of predators in the ecosystem c. the minimum population size in that ecosystem d. the maximum population size in that ecosystem