Which events contributed to life evolving on Earth? Check all that apply.

Organisms began to photosynthesize.
The surface cooled, and water condensed.
Volcanoes added carbon dioxide to the atmosphere.
Ozone formed and blocked ultraviolet rays from the Sun.
Comets crashed into Earth, releasing water.

Question

Which events contributed to life evolving on Earth? Check all that apply.

Organisms began to photosynthesize.
The surface cooled, and water condensed.
Volcanoes added carbon dioxide to the atmosphere.
Ozone formed and blocked ultraviolet rays from the Sun.
Comets crashed into Earth, releasing water.

mw104969 · Answer

which one do yuu think

Twix · Answer

i belive that its 1 3 and 6 because it seem more possible to me

Twix · Answer

it seems to make more sence

Twix · Answer

actually now that i read through it its 124 because the awnser is wright number one and the other awnsers dont make as much sence