Most Wanted Problems

Rank Related Problems (रैंक संबंधित समस्याएं)|Most Improtant Questions (सबसे महत्वपूर्ण प्रश्न)|OMR

"A science teacher must have necessary knowledge for the various problems faced by him/her in the teaching of his/her subjects". What can be the most prevalent problems from the given below options?

Which is the most serious problem of population growth?

You want to wear your favourite shirt to a party, but the problem is that it is still will after a wash. What steps would you take to dry it faster ?