Millionaire Mode

Air Pollution and Indoor Air Quality

Question 1 of 15

What is the primary source of indoor air pollution?

  1. Outdoor air pollution
  2. Building materials and furnishings
  3. Activities such as cooking, cleaning, and smoking
  4. All of the above

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