♡ 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 👍 :480
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ When Environmental Lapse Rate equals to Adiabatic ...
➣ Killing of tissue from air pollutants is ...
➣ For gravity settling chamber, settling velocity should ...
➣ A state in which warmer air lies ...
➣ Main impact of Greenhouse effect is : ...
➣ Carbon monoxide in air effects : ...
➣ Concentration of ozone in clean air is ...
➣ Air pollution from a variety of source ...
➣ Blue baze in forest area is produced ...
➣ Most natural hydrocarbons in air from : ...
❖ Take a qick MCQ Test on
➤ Building Material
➤ Steel Structure
➤ Transportation Engineering
➤ Concrete Structure
➤ Solid Waste and Waste Water Treatment
➤ Miscellaneous
➤ Water Supply
➤ Pollution (Air and Noise)