1) If forests disappear , the amount of carbon dioxide will increase , resulting in the increace of earth 's temperature 

2) In the absence of trees , the soil will not hold water ,which will cause floods

3) Deforestation will endanger our life and environment .

Verified answer

Forests are very important resources. We should be careful and concerned about the issues related to forest due to following reasons: If there are no forests, there would be more floods and more soil erosion. Forests affect the global environment in a great way.