Question

Increase in carbon dioxide in atmosphere is harmful because it

• A. traps heat
• B. causes respiratory disorders
• C. forms smog
• D. increases turbidity

Answer 1

The correct option is A traps heat

Carbon dioxide is one of the most abundant and major greenhouse gas which entraps the heat and causes the rise in temperature of the earth surface hence is greatly responsible for global warming also.

so the correct answer is 'traps heat'.