Sorry i'm answering late !
Trees remove<span> a significant amount of </span>carbon dioxide from the air<span>. They also </span>remove<span> ozone and particulates that accumulate in the </span>air<span>. In addition to </span>removing<span> these particles, </span>trees release oxygen <span>back into the </span>air<span>. By </span>removing carbon dioxide<span> and returning </span>oxygen<span>, </span>trees<span> help </span>maintain the balance between<span> these </span><span>gases</span>
Having the ability to reproduce is one characteristic of life.
fossil y exsited during the same period a ammonite