1) Explain the similarities and differences between a Coal-Fired Powerplant and a Nuclear Powerplant 

2) What is a "complete combustion reaction"?  What affect does it have in air pollution? 

3) How are U-238 and U-235 different? How are they the same? 

4) Find an active ingredient for an insecticide or herbicide available for purchase at a local hardware, or garden supply store.  Then look up the LD₅₀ value for that compound. In your response for this question state: "The insecticide/herbicide, Active ingredient, LD₅₀, reference source"