Challenger Logo

Challenger App

Get it on Google PlayGet it on App Store
App Logo

No.1 PSC Learning App

★
★
★
★
★
1M+ Downloads
Get App
The drinking water will be safe if its biochemical oxygen demand (B.O.D) is

A0

B5

C10

D25

Answer:

A. 0

Related Questions:

The sheet of liquid flowing over a notch is known as
താഴെപ്പറയുന്നവയിൽ വ്യക്താന്തര ബുദ്ധിയിൽ പെടാത്തത് ഏത് ?
A staff reading taken on a bench mark is called:
Electromagnetic torque and speed are in opposite directions in case of
The centre of the superscribed circle is called the