A- Explain the term "waste reuse" and mention the main difference between waste reuse and waste recycle

A- Briefly describe what you know about Ozone depletion and Global warming.and Name the major risks caused by a SOx on humans? -What air pollution control device is better in removing SO4? Draw the device and label all the important components.

A- List all the three Exposure Pathways to consider in risk assessment.

Draw the Inverted Hierarchy of Waste Minimization and give one example for the reuse and recycle part of the hierarchy that can be implemented in TU campus. (Note: the arrow showing the least favoured and the most favoured options is a part of the hierarchy and should be shown in the drawing)

During a Skype session with Tom and Tony, you mention that your current cost model in accounting is break-even analysis. They are not following your explanation, but they say they will swing by with some cookies for a discussion. More cookies! This is paying off, except for those extra pounds.

Selling price to Juicy Cookies at $10 per tin. The cost is $8 per tin, which includes $6 of direct material and $1.50 of direct labor. Annual manufacturing overhead is estimated at $100,000 for the expected sales of 200,000 tins. Operating expenses are projected to be $80,000 annually.

After looking over the costs for manufacturing overhead and operating expenses, you approximate that 85% of manufacturing overhead and 20% of operating expenses are variable costs.

1. What is the TOTAL fixed cost?

2. What is the TOTAL variable cost?

3. What is the contribution margin per UNIT? (Do not round.)

4. How many units are necessary to reach break-even? (Always round up to the next unit for break-even, since you cannot sell a partial unit.)

5. Tony is concerned that they will not be able to sell 200,000 tins of cookies. Given 200,000 tins as their expected sales level, what is the decrease of total sales dollars that they endure before they incur a net loss?

Provided a detailed procedure (preperation, purification, and analysis) to use in lab for the reaction 3,4-dimethyl-3-pentanol as a starting material, with 3,4-dimethyl-3-pentene (45% yield) and 3,4-dimethyl-3-chloropentane (55% yield) as the products. Procedure should include quantites (w correct stoichimetry) of chemicals required. Mention all techniques required during preperation, purification and analysis. Name all glassware.

Provided a detailed procedure (preperation, purification, and analysis) to use in lab for the reaction 3,4-dimethyl-3-pentanol as a starting material, with 3,4-dimethyl-3-pentene (45% yield) and 3,4-dimethyl-3-chloropentane (55% yield) as the products. Procedure should include quantites (w correct stoichimetry) of chemicals required. Mention all techniques required during preperation, purification and analysis. Name all glassware.

Provided a detailed procedure (preperation, purification, and analysis) to use in lab for the reaction 3,4-dimethyl-3-pentanol as a starting material, with 3,4-dimethyl-3-pentene (45% yield) and 3,4-dimethyl-3-chloropentane (55% yield) as the products. Procedure should include quantites (w correct stoichimetry) of chemicals required. Mention all techniques required during preperation, purification and analysis. Name all glassware.

Define - in your own words - each of the following related concepts
with the costs of a product or service:
to. 
F. Product costs
g. Raw material / Direct material
h. Direct labor / Direct labor
i. Indirect costs (manufacturing overhead)
j. Selling Costs / Marketing Costs
k. General and administrative costs
2. Mention an example of each of the concepts, behaviors and / or
characteristics of the costs defined in numeral 1.

Suppose that a purely competitive firm producing cakes discovers that their P exceeds their MC. Is their output of cakes be too little, too much, or just right to achieve allocative efficiency? In the long run, what will happen to the supply of cakes and the price of cakes? As part of your answer you should mention the two factors that will bring the supply-demand situation back into equilibrium if it becomes known that there is profit in making cakes.