Question

Earth's greenhouse effect causes:

• A. warmer surface temperature
• B. cooler surface temperature
• C. there is no change in surface temperature
• D. None of these

Answer 1

The correct option is A warmer surface temperature

Sunlight passes through the atmosphere and heats up the earth’s surface. $C{O}_2$ in atmosphere will traps the heat from sunlight and thus it contribute to greenhouse effect. When the amount of $C{O}_2$ is increased in atmosphere it will disturb the natural greenhouse balance. This cause the global warming. Thus, Earth's greenhouse effect causes warmer surface temperature. Hence, the correct answer is option (a).