1. “Earth--One Enormous Planet” LR 3.2, pg. 86, #1-5

2. 1. A principle of ecology is “We all live Downstream.” Explain. Everything is related to everything else. The simplest disturbance in any natural process sets off a chain reaction. Everything must go somewhere. Nothing can really be thrown away. When an object or substance is released into the environment, it will settle somewhere.

3. 2. Compare & contrast nonpoint source & point source pollutants, & list 3 examples of each. nonpoint source (NPS) pollutants = pollutants that are carried far from their sources by rain and melting snow and are eventually deposited in soil or into freshwater and groundwater systems 1.fertilizers & pesticides from farms & residential areas 2.oil, grease, & toxic chemicals from residential areas & factories 3. sediment from barren landscapes, construction sites, farms, & forests 4.etc.

4. 2. Compare & contrast nonpoint source & point source pollutants, & list 3 examples of each. point source (PS) pollutants = contaminants that are discharged or emitted from an identifiable source 1.output from factory pipes 2.leaking landfills 3.wastes from food processing plants & slaughterhouses 4.etc.

5. 3. How are partners in the Chesapeake Bay Program working to restore the watershed? Limiting development & monitoring the effects of growth Restoring habitat Restoring & protecting water quality

6. 4. Describe 4 devices used to detect pollutants. 1.pH paper/probes 2.continuous emission monitoring system (CEMS) 3.Fourier Transform Infrared spectrometer 4.electronic tongue

7. 5. List some of the natural events that affect environmental & human health. El Niño volcanic eruptions floods hurricanes wildfires biologic infestations etc.