Air pollution is an increasing problem in developing Countries due to________
A. Burning of more coal to produce electricity.
B. Changing lifestyles.
C. Unavailability ofenvironment-friendly technologies.
D. All the above
Answer:D
Air pollution is an increasing problem in developing Countries due to________
A. Burning of more coal to produce electricity. B. Changing lifestyles. C. Unavailability ofenvironment-friendly technologies. D. All the above