Resources from the Ocean & Ocean Pollution Chapter 13, sections 4-5

Resources of the Ocean (some nonrenewable Resources of the Ocean (some nonrenewable* ~ cannot be replaced within 1-2 generations) Raw Materials manganese nodules on ocean floor other raw materials* ~ (steel, copper, nickel, cobalt, phosphates) tidal & wave energy (clean & renewable) Note: some ocean resources are living, other are nonliving kelp used to thicken ice cream (seaweed is a type of alga) Food ~ fish, shellfish, some seaweeds/alga fossil fuels* ~ oil & natural gas (drill to get) drinking water ~ with desalination (very expensive) Should we build a desalination plant in Atlanta?

Be careful of over fishing

Ocean Pollution

Example of nonpoint-source pollution (difficult to trace because it comes from different sources)

Dumping Trash and Waste (examples of point-source pollution)

Oil Spills (point-source pollution)-double hulls

Question Why are mineral nodules that are found on the ocean floor considered a nonrenewable resource? ~ A. They are difficult and costly to locate and mine. ~ B. They are often composed of heavy metals. ~ C. They form from dissolved elements that cannot be recycled. ~ D. They cannot be created as quickly as they are mined.

A kelp plant is 5 cm tall. If it grows an average of 29 cm per day, how tall will the kelp plant be after 2 more weeks? 5 cm + (29 cm x 14 days) = 411 cm

Which is an example of nonpoint-source pollution? A. A leak from an oil tanker B. A trash barge C. An unlined landfill D. Water discharged by industry

Which of the following is a NON-renewable resource in the ocean? A. Fish B. Tidal energy C. Oil D. All of the above