Question

1. what would happen to earths average temperature without an atmosphere?

it would stay the same.
it would become completely dark.
it would become much warmer.
it would become much colder (around 0°f).

Explanation:

The Earth's atmosphere plays a crucial role in retaining heat through the greenhouse effect. Without the atmosphere, the heat from the Sun would be absorbed during the day but quickly radiate back into space at night, leading to a significant drop in temperature. The option "It would become much colder (around 0°F)" aligns with this scientific understanding. The other options are incorrect: the temperature wouldn't stay the same, the atmosphere isn't the primary factor for light (so it wouldn't become completely dark), and without the greenhouse effect, it would cool, not warm.

Answer:

It would become much colder (around 0°F).