Feed additives, such as antibiotics, must be declared safe and effective before they are
approved by the U.S. Food and Drug Administration and made available for use in
animal feeds.
A. True B. False
A
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With the help of a sketch, explain the two-stage joint seal in precast concrete wall panels. What are its advantages over a single-stage joint seal?
What will be an ideal response?
The total volume of the oceans on Earth is 1.35 x 1018 m3. What are the masses of the following elements in the Ocean in units of kg?
a. Oxygen, O, for which the concentration in the seawater is 857,000 ppm b. Hydrogen, H, for which the concentration in the seawater is 108,000 ppm c. Sodium, Na, for which the concentration in the seawater is 10,500 ppm What will be an ideal response?
Why would the compressor run longer when system demand is not high?
A) The system registers a below normal operating pressure. B) The system does not have the correct amount of refrigerant. C) The system was precharged with too much refrigerant. D) The system is clogged with debris.
Primary sources are sometimes available in ____ that can be accessed online.
A. trademarks B. laboratories C. databases D. secondary sources