Question: Other sectors in which increasing returns to both production and consumption prevail--and there are quite a few outside what is normally thought of as high technology--do not seem especially admirable.
Sectors that have a prevalence of increasing returns in 5 fields is very admirable.

Answer: no

Question: She became so interested in the area's ongoing struggle and the local culture that she decided to study it systematically, exiting from her marriage to return there.
She couldn't wait to finish her studies and leave the area with its bizarre inhabitants.

Answer: no

Question: i mean one day it was like sixty below zero
Once it was around -60 degrees.

Answer:
yes