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<h3>Question Description</h3> <p>Read pages 446-457 and answer the following questions:</p><p>1. Contrast point source pollution and non-point source pollution. Provide an example of each.</p><p>2. What are the three major sources of

<p>1.The effective "depth of penetration" of an electromagnetictool is a function of the frequency employed and the conductivityof the subsurface at the site being investigated. Explain thisstatment.</p><p>2. Select an environmental