QUES: Q: Diaz promoted economic growth by encouraging investment from foreign companies at the expense of what group?
A: At the expense of the working class, the Diaz administration promoted economic growth by encouraging investment from foreign companies from the United Kingdom, France, Imperial Germany and the United States.
Does the answer answer the question?

ANS: yes

QUES: Q: How is a standardized ecosystem formed?
A: Conversion to "trivial" standardized ecosystems (e.g., monoculture following deforestation) effectively destroys habitat for the more diverse species that preceded the conversion.
Does the answer answer the question?

ANS: yes

QUES: Q: What is the national marriage average among college graduates?
A: This is compared to a national marriage average among college graduates of 11 percent.
Does the answer answer the question?

ANS: yes

QUES: Q: What is the higher end of typical human hearing?
A: Carrier signals of Quad LPs popular in the 1970s were at 30 kHz to be out of the range of human hearing.
Does the answer answer the question?

ANS:
no