Register
About 2.2 billion years ago, a significant amount of oxygen appeared in the atmosphere. How does this relate to life on Earth during this time and after?
84.6k views
4 votes
About 2.2 billion years ago, a significant amount of oxygen appeared in the atmosphere. How does this relate to life on Earth during this time and after?

User Jimoc
by
2.9k points

1 Answer

5 votes

Answer:

Cyno-bacteria used sun, water and carbon dioxide to produce oxygen

Step-by-step explanation:

  • A significant amount of oxygen contributed to the formation of the ozone and protected life form the UV rays. Photosynthesis was successfully and plants were able to convert the light energy from the sun and used for the primary producers an oxygen was a significant by-product.
User Yannis Assael
by
3.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

3.3m questions

4.2m answers

Other Questions

It has been observed that forest fires can produce up to 40 percent of the mean annual global emissions of which of the following gases?A. nitrogenB. carbon dioxideC. oxygenD. All of these
People are not spread out evenly over the world true or false
This picture shows a child playing in the snow during winter in the Northern Hemisphere. In which direction is Earth’s axis tilting at this time?
The path of one object rotating around another
Fossils of Glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? Check all that apply
Link Copied!