Why are HCFCs not as harmful to the atmosphere as CFCs?
What will be an ideal response?
HCFCs are less chemically stable than CFCs because they still contain hydrogen. Most HCFCs released to the air tend to break down in the troposphere before reaching the stratosphere.
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Clair has 86 lambs for which she developed a balanced ration of 16.5 percent CP with 70 percent TDN. She used the feedstuff given in Table 16-1 to make the ration.
a. How many pounds of each feedstuff were needed to make 100 pounds of ration?
b. How many pounds of each feedstuff were needed for a ton of ration?
c. What is the ratio of alfalfa-grass hay, corn, and soybean meal in the ration?
A(n) ____ electrician is an experienced electrician who may have completed training through an apprenticeship program and is able to work independently without supervision. a. tradesman c. journeyman b. salesman d. apprentice
xa. tradesman b. salesman c. journeyman d. apprentice
Using Billy’s Convenience Store found in Appendix D, estimate the quantity of brick veneer and split-faced block.
What will be an ideal response?
To allow for better stepping resolution, most stepping motors have ____ stator poles.
A. two B. four C. six D. eight