In the late 1700 what was francestors most powerful stronghold in north america

Jamestown Virginia was the strongest in the 1700s

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.

answer; dead end or culdesac;