Please correct my sentences. :)

Forests are helpful to us because of their advantages. And we can see various kinds of animals and plants. So in order to live in great environment, we have to preserve our forests. First, I will introduce advantages of forest. 1.Forest can prevent us from flood. Many roots of plants absorb plenty of water. So when It rains very much, we can be safe. 2.Forests provide us with fresh air. Actually the chemical substance called "phytoncide"from trees make the air fresh and clear. 3.Forests provide us with a very good vista. That's why we often go to mountain to enjoy them. I wrote more but I really want to ask about this part. :) Really thank you~

Hi Kevin! Here is the correction. Please go over and ask me for any clarifications tomorrow. I hope this helps! Take care, Kevin. Good night. -T. Louise- Forests are helpful to us because of their advantages. >> Correct. And we can see various kinds of animals and plants. >> It is where we can see various kinds of animals and plants. So in order to live in great environment, we have to preserve our forests. >> In order to live in a great environment, we have to preserve our forests.  First, I will introduce advantages of forest. >> First, I will introduce the advantages of forests. 1.Forest can prevent us from flood. >> 1. Forests can prevent the occurrence of floods.  Many roots of plants absorb plenty of water. >> Correct. So when It rains very much, we can be safe. >> That's why when it rains, we are safe.  2.Forests provide us with fresh air. >>  2. Forests provide us fresh air. Actually the chemical substance called "phytoncide"from trees make the air fresh and clear. >> Correct.  3.Forests provide us with a very good vista. >>  Correct. That's why we often go to mountain to enjoy them. >> That's why we often go to mountains and enjoy the sceneries.  I wrote more but I really want to ask about this part. :) >> Correct.  Really thank you~ >> Thanks a lot!