Source:  NASA Source: NASA
          Source:  NASA  Source: NASA.  Unit 5, Investigation 1  Activity 1.1, p. 1 of 12.  Unit 5, Investigation 1  Activity 1.1, p. 2 of 12.  Sea Level Rise.     The table shows the annually averaged change in the sea level since 1888.    	Many believe that this increase is due to global warming.
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