Explanation:
Why (for what reasons) is it believed that oxygen was not present when life formed on Earth? The life forms were anaerobic, and did not make oxygen. There is a lack of oxidized iron in rocks that are a few billion years old. Eventually oxygen from the oceans moved into the atmosphere, and iron could be oxidized.
Answer:
Sea shell fossils are found in a mountain-top cave in New Hampshire.
Explanation:
Dear public, our ecosystem is being ruined and we need to stop it, i think you should do something about the littering and loitering in our community and in the U.S. it would help a lot of people if you made a law against it or if we went out and all did community service and helped pick up. if you don't like these ideas we could protest, but all me and my fellow people ask is that you help our <span><span>ecosystem for better lives for everyone! yours truly, citizen</span></span>
There are no true tropic climates
It's need to pass oxygen to the blood to the respiratory system work properly I think that the answer
