♡ 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 👍 :2.3K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ Chlorophyll loss in green plants is called ...
➣ Carbon monoxide in air effects : ...
➣ Pollutant Standards Index (PSI) value greater than ...
➣ For gravity settling chamber, settling velocity should ...
➣ Radiations which are not deflected by magnetic ...
➣ When Environmental Lapse Rate equals to Adiabatic ...
➣ What type of noise can be abated ...
➣ When Environmental Lapse Rate equals to Adiabatic ...
➣ Blue baze in forest area is produced ...
➣ Hydrocarbons in the from of terpenes, as ...
❖ Take a qick MCQ Test on
➤ Strength of Material
➤ Concrete Structure
➤ Solid Waste and Waste Water Treatment
➤ Water Supply
➤ Transportation Engineering
➤ Concrete Technology
➤ Surveying
➤ Soil Mechanics and Foundation