♡ 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 👍 :2.4K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ When Environmental Lapse Rate equals to Adiabatic ...
➣ Chlorophyll loss in green plants is called ...
➣ A device which dust in a gas ...
➣ Carbon monoxide in air effects : ...
➣ For gravity settling chamber, settling velocity should ...
➣ A state in which warmer air lies ...
➣ Most commonly used control device for particulate ...
➣ Leaf abscission is : ...
➣ Pollutant standards Index (PSI) value in between ...
➣ Radiations which are not deflected by magnetic ...
❖ Take a qick MCQ Test on
➤ Building Material
➤ Strength of Material
➤ Concrete Technology
➤ Solid Waste and Waste Water Treatment
➤ Transportation Engineering
➤ Steel Structure
➤ Concrete Structure
➤ Water Supply