[ 113 ] Earth and Space Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Referencing the passage, which effect from carbon dioxide could have a direct negative impact on marine food webs? A. reduced calcification of coral B. increased air pollution from cars C. rising sea levels from melting glaciers D. warmer temperatures on Earth’s surface Which type of coastal erosion would be most impacted by ocean acidification? A. abrasion B. attrition C. corrosion D. hydraulic action 1940 1950 1960 1970 1980 1990 2000 2010 Year 400 375 350 325 300 275 CO 2 8.38 8.33 8.28 8.23 8.18 8.13 8.08 8.03 pH Atmospheric CO 2 (ppmv) Seawater pCO 2 (µatm) Seawater pH When considering both the passage and the image, overall, what statement might be inferred? A. Ocean acidification is not a problem. B. Before the 1990s, seawater pH did not exist. C. Carbon dioxide comes from only one source. D. Calcium carbonate can be dissolved by acidic water.