Question

without green house effect average temperature of earth could be​

Answer 1

Answer:

-18 °C

A key one is the greenhouse effect. Greenhouse gases in the air, mainly carbon dioxide, methane and water vapour, trap radiation from the Sun and act like a thermal blanket around the planet. Without the greenhouse effect, the Earth would have an average temperature of -18 °C and be covered in ice.

Answer 2

Explanation:

$\huge\mathcal\colorbox{navy}{{\color{gold}{(☞-18°࿐)}}}$

"Without the greenhouse effect, the Earth would have an average temperature of -18 °C"