1. C. using pesticide in killing insects
explanation:
* using pesticides is not good to the environment.
2. B. flooding and soil erosion will occur
explanation:
* flooding and soil erosion happens when people constantly cuts tree without replanting.
3. D. recycling old and used newspapers,bottles and cans
explanation:
* recycling old stuffs is a good way to help theenvironment heal.
4. C. Repaint
explanation:
* repaint does not belong to the 5 r's of waste management.
sana makatulong :)
