Phoenician sailors were more skilled then Greek sailors, so they ventured beyond the sight of land for
trade on a regular basis Indicate whether the statement is true or false.
ANS: F
Both the Greeks and the Phoenicians stayed within the sight of land despite their skills on "the river"
or the ocean. Information can be found in the section Understanding the Ocean Began with Voyaging
for Trade and Exploration.
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Match the chemical weathering process with the correct definition
A) Minerals dissolved in acidic water. B) Positive ions lose electrons to oxygen. C) Positive ions are replaced with H+ or OH-. 1) Dissolution 2) Oxidation 3) Hydrolysis
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Indicate whether this statement is true or false.
Which of the following is a synthetic greenhouse gas?
A) water vapor B) methane C) oxygen D) nitrogen E) chlorofluorocarbons