1- 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 .

2- 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 .

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