Emperor Theodosius made Christianity the official religion of the Roman Empire
Answer:
Okay, so the first one is both because both lands could be sold at this time,
The second one is American steelers,
The Third is Native America,
And finally, the last one is Both,
(the last one was obvious you should of know one at least!)
Explanation:

14. Many researchers believe that IQ has a reaction range, which refers to the limits imposed on IQ by heredity. The IQ that a person can achieve is limited by hereditary factors, which set an upper and lower limit. The environment determines where a person's IQ falls within these
ranges.
15. Fluid and crystallized intelligence change over time, with different mental abilities peaking at different times. Fluid intelligence has long been thought to peak in childhood, but new research published in 2015 suggests that some aspects of fluid intelligence may peak as late as age 40.