What was the effect of the change in Earth’s atmosphere from a reducing to an oxidizing one?

Select all that apply.

Responses

it increased the atmosphere’s oxygen content which could better support life.
it increased the atmosphere’s oxygen content which could better support life.

it allowed the Sun to shine less brightly so that Earth could cool.

it caused Earth to cool as there was less greenhouse gases present.

it resulted in a reduction in volcanic activity.

it increased the atmosphere’s oxygen content which could better support life.

it caused Earth to cool as there was less greenhouse gases present.

The correct responses are:

- it increased the atmosphere's oxygen content which could better support life.
- it caused Earth to cool as there were fewer greenhouse gases present.