Please see 4 question below in the description box. All 4 questions must be at least 200 words in lengh.

1.  What is the significance of the discount rate, present worth, net present value, and indirect costs to a company considering pollution prevention options?

Must be at least 200 words in length.

2. Describe the current eco-labeling programs.  Why does the US not have a national policy?

Must be at least 200 words in length.

3. What are the molecular modifications that can be made to reduce adsorption by the gastrointestinal tract and inhalation?

Must be at least 200 words in length.

4. Contrast the basic principles of recycle vs. resuse.  Apply these principles to an example of the operations for a small municipal city Public Works department for a community of 12-14,000 citizens.  What types of materials, wastes, and programs might be involved in your example?

Must be at least 200 words in length.