Which of the following statements describes the radiative behaviour of a red shirt?
A. It selectively absorbs infrared wavelengths and scatters the rest.
B. It selectively scatters red wavelengths of visible light and absorbs the rest.
C. It selectively absorbs red wavelengths and scatters infrared wavelengths.
D. It selectively absorbs red wavelengths of visible light and scatters the rest.
Answer: B
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The U.S. government is separated into three branches: the legislative, judicial, and executive.
Answer the following statement true (T) or false (F)
What is the most accurate description of the principle of a lightning rod?
A) The lightning rod acts to discharge the thunderstorm. B) The lightning rod intercepts the lightning and safely carries the lightning current around the object it protects. C) Lightning rods have been used since the 1700s, but the principle of their operation is not known. D) A positive charge induced in the lightning rod repels the negative charge in an approaching step leader.
The pesticides that also function as endocrine disruptors cause disease by
A) causing excessive secretion of stomach acids. B) mimicking the effects of estrogenic hormones. C) causing muscle spasms and cramping in major muscle groups. D) greatly reducing the ability of the intestines to absorb nutrients.
Which of the following is formed when an amide reacts with an amine?
A) a less highly substituted amide B) a more highly substituted amide C) an imide D) Nothing, amides do not react with amines.