Question: 1. Describe the four major classes of pesticides. Include in your answer the advantages and disadvantages of using each, as well as their public health impact and current control measures for exposure. Your response should be at least 225 words in length.

2. Describe the similarities and differences between ionizing and non-ionizing radiation. Make sure to include discussion regarding the health effects of each supported by examples. Your response should be at least 225 words in length.

3. Discuss the four categories of metals and give an example of each. Make sure to discuss the environmental sources of exposure, as well as the public health impact (good and bad). Your response should be at least 225 words in length.

4. What is meant by the term "dirty bomb", and what would be the main consequences of the detonation of such a device within a city? Make sure to discuss the immediate and long-term effects and what role environmental health would play in such an occurrence. Your response should be at least 225 words in length.

Course Textbook: Friis, R. H. (2012). Essentials of environmental health (2nd ed.). Burlington, MA: Jones & Bartlett Learning.