Answer:Use your isostasy equation for Habove(Question 18) to calculate how much of an icebergis exposed above sea level. Show your work.3) Notice the graph paper grid overlay on the picture of an iceberg in Figure 1.16B.Use this grid todetermine and record the cross-sectional area ofthis iceberg that is below sea level and the crosssectional area that is above sea level (by addingtogether all of the whole boxes and fractions ofboxes that overlay the root of the iceberg or theexposed top of the iceberg). Use this data to calculate what proportion of the iceberg is below sealevel (the equilibrium line) and what proportionis above sea level. How do your results compareto your calculations in Questions 19a and 19b?4) What will happen as the top of the iceberg melts?5) Clarence Dutton proposed his isostasy hypothesis to explain how some ancient shorelines havebeen elevated to where they now occur on theslopes of adjacent mountains. Use your understanding of isostasy and icebergs to explain how
