1. Distinguish among fluidized-bed combustion, coal liquefaction, and coal gasification. 2. . Fossil fuels are nonrenewable resources. Why is this a problem from a systems perspective? (Hint:...

1. Distinguish among fluidized-bed combustion, coal liquefaction, and coal gasification.

2. . Fossil fuels are nonrenewable resources. Why is this a problem from a systems perspective? (Hint: Irreversible change disrupts system stability.)

3. What is the relationship between fossil fuels and greenhouse gases?