Which statement about ancient american civilizations expresses a historical theory rather than a historical fact?
a. the incas lacked a written language.
b. the spread of disease caused the downfall of the mayan empire.
c. human sacrifice was an element of the aztec religion.

The spread of disease caused the downfall of the Mayan empire (B.) is not a historical fact, but is rather a theory developed by historians as research has been conducted of ancient American civilizations.

renewable resources- resources that can be replenished (such as trees)

nonrenewable resources- resources that are gone once they are used (such as fossil fuels)

producer-person who makes goods or provides services

consumer- person whose wants are satisfied by using goods and services

allocate- distribute

choice- option

(hope this ! )

no we should not be nervous we should have that confident to do works and should have faith on own self hop u got answer