Question 1What are dead zones and how do they form? What are the sources of poll

Question 1What are dead zones and how do they form? What are the sources of pollution that cause cultural eutrophication?Response must be 200 words in length. All sources must be cited and referenced.Question 2What are the observed and expected effects of climate change? Which of these effects do you believe is the most threatening to human health?Response must be 200 words in length. All sources must be cited and referenced.Question 3What are the EPAs seven criteria pollutants and their sources? Discuss the environmental and health effects of each pollutant.Response must be 200 words in length. All sources must be cited and referenced.Question 4Discuss how a constructed wetland system works to treat municipal wastewater. What advantages does a constructed wetland system have over conventional sewage treatment?Response must be 200 words in length. All sources must be cited and referenced.