Which of the following are used to measure humidity:
1) human hair
2) synthetic strands
3) a bellows
4) hydroscopic salts
a) 1,2
b) 1,2,3
c) 2,3,4
d) 1,2,4
e) 1,4
Answer: D
Which of the following are used to measure humidity:
1) human hair
2) synthetic strands
3) a bellows
4) hydroscopic salts
a) 1,2
b) 1,2,3
c) 2,3,4
d) 1,2,4
e) 1,4
Answer: D