MTTC Geography (008) Practice Tests & Test Prep by Exam Edge

this question tests your knowledge of the effects of global warming. el niño is a pattern of currents in the pacific ocean that results in warmer than usual ocean temperatures, while la niña is a pattern of currents in the pacific that results in colder than normal temperatures. both of these patterns of ocean currents and temperatures affect weather patterns over large portions of north and south america, but not have net effect on sea level or the coasts in other parts of the world. global warming is caused by an accumulation of gases in the atmosphere that trap the heat radiating from the earth, causing a net increase in surface temperature. this increase is predicted to cause large-scale climate change, including the melting of the polar ice caps which will cause sea levels to rise, as well as change ocean current patterns. global warming however, is not predicted to cause changes in the mantle located under the earth’s crust. the rising sea levels caused by global warming will lead to increased flooding and erosion of the world’s coastlines.