The permissible and excessive limits of fluoride in drinking water in India have been set up at
A1 and 2 ppm
B10 and 12 ppm
C0.1 and 0.2 ppm
D5 and 10 ppm
No.1 PSC Learning App
★
★
★
★
★
Related Questions:
The distance travelled by a moving vehicle during perception time and brake reaction time is called
When a cone is cut off by a plane inclined to its base, but not passing through base, and the portion obtained after removing the part containing the apex is:
What does the term 'Upa' in the term Upanishad denote?
In a amplifier, coupling capacitor is used to
A transistor is basically an amplifying device for