1. Hand towel is a tool used to A. cut branches B. transfer garbage C. remove dried leaves D. transplant and potting 2. The following are the healthy contributions of trees, which one is NOT? A. gives fresh air B. causes of flood C. prevent soil erosion D. supply sufficient water 3. It is necessary to plant trees and fruit-bearing trees. Which of the following statement is incorrect? A. prevent flood B. it gives shade C. it caused landslide D. it provides fresh air
