Discussion about environment

I need an explanation for this Environmental Science question to help me study.

1. What are the effects of chemical use in the lawn industry? How has this impacted not only the health of humans and animals, but also the atmosphere? What is being done to control this?

2. How has the use of bottled water changed over the last couple decades? Does research show that there is a difference between tap water and bottled water? What are the pros and cons of using bottled water? Is this a marketing issue or a conservation issue, or both? Explain.