Can we add some restrictions for those who keep posting 100% of their homework, and then copy paste the answer which even making any efforts themselves? If this goes on, they won't learn anything. they'll be so dependent on internet for finding a solution and then at higher studies, there will be no one to answer for them. I won't be surprised if this question gets deleted. that's what I expect from the mods ;)

yh true story! most people ask almost every question. maybe That's becuase they like to spend more time on the phone and that's an excuse they can give to their parents. it's 100% true what ur saying!

yh true story! most people ask almost every question. maybe That's becuase they like to spend more time on the phone and that's an excuse they can give to their parents. it's 100% true what ur saying!

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.