Where is life suggested to have begun

"human" life is suspected to have manifested from a single celled organisms that mutated and manipulated newly formed oxygen from terraformed earth and over many years developed. it is also important to note that water came from a falling comet which is vital for our survival since it was the first environment we were introduced.
hope this helps!

Increasing the release of greenhouse gases and pollution

The correct answer is:   [b]:   "distortion" .