A ‘heat island’ is defined as an area which is relatively hotter than its neighbouring rural areas. Which of the following is the primary reason for creation of heat island?

Answer: [A] Use of air-conditioners

All given options contribute in one or the other way to form a heat island. But the primary cause is use of air-conditioners which release greater amount of greenhouse gases.

This question is a part of GKToday's Integrated IAS General Studies Module