Which of the following groups benefitted the least from the prosperity of the second industrial revolution? a. farmers b. railroad workers c. factory workers d. textile workers

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; ///self- learning;