Air pollution comes from ____________________ and ____________________ sources
Fill in the blanks with correct word
natural, human
human, natural
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For the following reaction, identify whether the compound in bold is behaving as an acid or a base. H3PO4 + H2O ? H2PO4- + H3O+
A) acid B) base C) neither D) both E) none of the above
During the Northern Hemisphere winter, isotherms are ____ those observed in July
A) farther apart than B) varied depending on proximity to landmasses compared to C) closer together than D) equally spaced as
If very cold air is brought indoors and warmed with no change in its moisture content, the saturation vapor pressure of this air will ____ and the relative humidity of this air will ____
A) increase; increase B) decrease; decrease C) increase; decrease D) decrease; increase
Of the six major modified Köppen climatic types used in your textbook, only the Group ________ is associated with climates defined on the basis of moisture
A) A B) B C) C D) D E) E