1. The loss of biodiversity is expressed in different ways in the letter.
2. The forest will be submerged and cannot be seen.
3. The various trees, shrubs and herbs are not seen and their traditional knowledge will be forgotten.
4. Many different kinds of crops that were not grown outside the forest will not be cultivated.
5. Channels made from streams will be washed away.
6. Thus, the loss of biodiversity was discussed.