An atom with a charge of +1 has an atomic number of 6 and a mass number of 14. How many electrons does it have?
A) 7 B) 6 C) 5 D) 8
C
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The mineral portion of the soil consists of humus and the roots of plants.
Answer the following statement true (T) or false (F)
When micropolitan statistical areas overlap, they can form into a megalopolis. What part of a megalopolis consists of overlapping regions of the separate micropolitan areas?
A) the periphery of the urban areas B) the downtown areas C) the annexed areas D) the CBDs E) the metropolitan areas
Bisphenol A (BPA), a common component of plastics in bottles and can liners
A) mimics estrogen and can potentially cause disruption of human reproduction and development. B) causes mutations similar to those caused by UV light and X-rays. C) has been tested by the European Commission and found safe for human consumption. D) has been withdrawn from manufacture and use in the United States.
Under the Law of Diminishing Marginal Utility, what do utility curves represent?
A) what consumers can do B) what consumers would like to do C) what consumers actually do D) what governments constrain consumers to do E) what employers limit consumers to do