Close Menu
Login
(Sponsored by Sir Tauqeer)
Join Sir Tauqeer Whatsaap group
(Sponsored by Sir Tauqeer)
Join Sir Tauqeer Whatsaap group
(Sponsored by Sir Tauqeer)
Join Sir Tauqeer Whatsaap group
By CHEMICAL ENGINEERING Chemical Environmental Engineering No Comments

Fluorosis (a bone disease) is caused by the presence of high concentration of ____________ in atmospheric air?

A. Hydrocarbons
B. Hydrogen fluoride
C. Hydrogen sulphides
D. Nitrogen dioxide

Advertisement
Advertisement
Share.
Leave A Reply

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

The reCAPTCHA verification period has expired. Please reload the page.