If the greenhouse effect were not present in the Earth's atmosphere

PHYSICS · Single correct · IB Diploma Programme · Physics · The greenhouse effect · The greenhouse effect

Problem

If the greenhouse effect were not present in the Earth's atmosphere, the best estimate of the surface temperature would be (1)

-40\text{ }^\circ\text{C}

. (2)

-20\text{ }^\circ\text{C}

. (3)

0\text{ }^\circ\text{C}

. (4)

20\text{ }^\circ\text{C}