Answer:

Correct Answer: A

Solution:

• India is the world’s sixth largest and second fastest growing producer of greenhouse gases. According to Biennial Update Report, India’s total greenhouse gas (GHG) emissions in 2010 was 2.136 billion tonnes Carbon dioxide equivalent. Delhi, Mumbai and Chennai are three of the world’s most polluted cities. Two-thirds of city dwellers lack sewerage; one-third lack portable, clean water.