♡ Login
Home
Previous Papers
★
MCQs
Civil Engineering
Pollution (Air and Noise)
A blue line along the gum is ...
Que.
A blue line along the gum is caused by :
A.
virus
B.
protozoa
C.
suspended particulates
D.
lead poisoning
Right Answer is :
✓ D. lead poisoning
⚑ Report
Views 👍 :2.1K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ A shall discrete mass of solid or ...
➣ The Gaussion model is used for prediction ...
➣ The category of devices by which dust ...
➣ Most commonly used control device for particulate ...
➣ A device in which gas is ...
➣ Carbon monoxide in air effects : ...
➣ Hydrocarbon which may damage plants : ...
➣ Pollutant Standards Index (PSI) value greater than ...
➣ Most dangerous hydrocarbon found in the automobile ...
➣ Epinasty in leaves is due to : ...
❖ Take a qick MCQ Test on
➤ Irrigation
➤ Concrete Structure
➤ Water Supply
➤ Miscellaneous
➤ Hydrology
➤ Surveying
➤ Building Material
➤ Steel Structure