Which of the following is the most lethal water pollutant ?

Related Mcqs:

Ringelmann chart No. 2 corresponds to _______________ percent black smoke?

A. 10 B. 20 C. 40 D. 80...

As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is _____________ μg/m3.(μg-microgram)?

A. 10 B. 90 C. 800 D. 750...

The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is_________________?

A. Pipe vibrations B. Cavitation C. Boundary layer separation D. Fluctuation in liquid flow...

80% less than 200 mesh size particles are called____________________?

A. Smoke B. Powder C. Grit D. Aggregates...

Polyvinyl chloride containers are not suitable for storing_________________?

A. Foodstuffs B. Woolen clothes C. Metallic powder D. None of these...