Explain why and why you think this will help. Give an example. The average number of children per family varies depending on the area of the world that people live in. The issue of reintroducing wolves is currently a hot topic in New England. 11 Dec update Biodiversity is essential in preserving different ecological systems.
Biodiversity provides many benefits.
From the different sewage treatments we have learned about this year, choose one and explain the advantages, disadvantages, an estimated cost, and why you would select this certain sewage treatment for your future home.