Human Impact on Biogeochemical Cycles Worksheet

Using the textbooks, the University Library or other resources, answer each of the following questions in 150- to 300-words. Be sure to provide references for the sources you use.

Question

Your neighbor faithfully applies fertilizer to his lawn to ensure beautiful, healthy green grass. Explain how your neighbor's fertilizing habit affects at least one nutrient cycle.

Your friend commutes to work every day by driving a standard gasoline-powered car. Explain how your friend's commute affects one or more nutrient cycles.

Urban areas typically have lots of pavement and compacted soils. Explain how these impermeable surfaces affect at least one aspect of the hydrologic cycle.