If all the ice covering Antarctica , Greenland, and in mountain glaciers around the world were to melt, sea level would rise about 70 meters (230 feet). The ocean would cover all the coastal cities. And land area would shrink significantly. ... Scientists are studying exactly how ice caps disappear.
It's about the study of the earth. Like mapping, or just looking at different biomes or landscapes.
The firat one is c and the second one is d
