Question

a) How did the biosphere evolve over apoiod of time​

Answer 1

$\huge\mathtt\color{navy}{An}\purple{sw}\pink{er}\color{pink}{:} </p><p>$

Over a long period of time, the atmosphere developed a mix of oxygen and other gases that could sustain new forms of life. The addition of oxygen to the biosphere allowed more complex life-forms to evolve. Millions of different plants and other photosynthetic species developed.

Answer 2

Answer :-

Over a long period of time, the atmosphere developed a mix of oxygen and other gases that could sustain new forms of life. The addition of oxygen to the biosphere allowed more complex life-forms to evolve. Millions of different plants and other photosynthetic species developed.

Explanation :-

hope this answer helpful for you!!!!