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Do Now 12/14/09

Do Now 12/14/09. Answer the following questions in complete sentences: 1.What are the three states of water? What occurs from one state to the other? ( Draw a diagram to organize your thoughts) 2.Can a stream be both a meandering and braided stream ? Explain.

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Do Now 12/14/09

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  1. Do Now 12/14/09 Answer the following questions in complete sentences: 1.What are the three states of water? What occurs from one state to the other? (Draw a diagram to organize your thoughts) 2.Can a stream be both a meandering and braided stream? Explain. 3. Why are oceans important, how do humans use them?

  2. Chp.8-3Ocean Pollution

  3. What are the sources of ocean pollution? • Pollution- The introduction of harmful waste products, chemicals, and other substances not native to an environment. • Sewage • Chemical Pollution • Oil Pollution • Solid-waste Pollution • Sediment

  4. Sewage • Source: • Leaks from septic tanks. • Pumped directly by factories. • Result: • Sewage acts like a fertilizer creating algae blooms. • Algae uses up the oxygen meant for other marine life. • Ecosystem and food chains change.

  5. Chemical Pollution • Sources: • Herbicides(wee killer) and pesticides (insect killer) get to the ocean through runoff. • Factory smoke. • Industrial waste (metals and mercury) • Results: • Sea organisms ingest harmful chemicals. • Ecosystems and food chains change.

  6. Oil Pollution • Sources: • 44 % of oil in the ocean comes from land runoff. • Oil tanker collisions. • Leaks on offshore oil wells. • Results: • Ocean animals are harmed. • Ecosystems and food chains are changed.

  7. Solid Waste Pollution • Sources: • What are some sources littering you see on a daily basis? • Results: • Dirty beaches. • Ocean animals eating plastics. • Ecosystems and food chains are changed.

  8. Sediment • Source: • Increase runoff of silt due to construction and deforestation. • Result: • The silt covers coral reefs and fills marshes. • Safe places for ocean organisms to grow are changed.

  9. VideoEffects of Ocean Pollution • Please answer the following questions in complete sentences while watching the video: • What role does the ocean play in human existence? • What impact do carbon dioxide levels have on the ocean? • What is the deadly method of fishing called? • What questions should you be asking when ordering fish at a restaurant? • What has the USA done to protect from over-fishing?

  10. Do Now 12/15/09 • Answer the following questions in complete sentences: • 1. Categorize the following organism and explain why they belong in that category. 2. Look at the following pictures and tell which type of wetland is being shown. 3. What are the three reasons why water is important?

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