will hair grow back, by plucking? I have been doing in my arms.
Yes, it will take about 3 months and will probably appear thicker. If tweezing were a good option, everyone would be doing it. If you want a permanent solution, consider electrolysis (guaranteed permanent) or laser which will work in some cases.
Yes, removing the hair with the root can change its structure over time.
It will definitely grow back in the next cycle of growth. Plucking doesn’t prevent future growth. Only laser and electrolysis methods can do that.