Sources of CFCs are
refrigeration, spray cans, fire extinguishers etc.
They banned because it damages earth's ozone layer and environment.
Section 2: CFCs Chlorofluorocarbons (CFCs) were introduced as refrigerants in the 1930s, replacing other gases that were toxic and corrosive. How do the molecular shape and polarity of CFCs contribute to the many desirable qualities they have as refrigerants? Given that they are such desirable refrigerants, why are they banned? What chemistry is involved? How has their molecular shape and polarity had harmful effects on the atmosphere? Please in 300 words, thank you
1. Define Radiative Forcing 2. Why are CFCs less of a concern than CO2 as a greenhouse gas if CFCs have a higher radiative forcing value? 3. Explain the mechanism behind the greenhouse effect. 4. Describe three ways that human activity is altering the process in question #3 5. Why do you think it has been so difficult to get policy action on climate change at the federal level in the United States What are some ways that the Commonwealth...
1. Name and explain the two schools of thought in macroeconomics. 2. Why is specialization and the division of labor important to economic growth? 3. How do you define " per capita growth"? 4. Discuss two sources of economic growth. 5. What role does comparative advantage play in international trade? 6. Name three sources of U.S. comparative advantage. 7. What effect does currency depreciation/appreciation have on that country's exports?
Why have executions been banned from public view since the late 1940s?
What are the two primary sources of equity capital? Explain why there is a cost to using reinvested (retained) earnings; that is, why aren’t reinvested earnings a free source of capital?
Explain what types compounds get transported in the phloem and why Explain the concept of sources and sinks in terms of phloem translocation; know examples of source and sink organs for sugars and nitrogenous compounds Explain how a leaf can be a sink and a source for photosynthate (sugars) at different times
Define common and assignable causes. Explain why it is important to separate sources of variability into common and assignable causes.
the Chapman mechanism in a “clean” atmosphere with no CFCs pollutants, what should happen to the concentrations of atomic oxygen and ozone during the nighttime hours when there is no sunshine? Explain
Explain the difference between MUFAS, PUFAS, saturated fat, cholesterol, and transfat. Name food sources for each type. Calculate your protein requirement. Show calculation.
explain why streptomyces coelicoler is a beneficial microorganisms and use 2 academic credible sources of information.