Millionaire Mode

Water Pollution and Quality Standards

Question 1 of 42

High biological oxygen demand indicates:  

  1. the absence of microbial pollution
  2. moderate microbial pollution
  3. the intense level of microbial pollution
  4. all of these

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000