Author Question: Why does the hypsometric curve show two broad flat areas, one at about 840 meters above sea level ... (Read 105 times)

casperchen82 · **on:** Aug 22, 2018

Why does the hypsometric curve show two broad flat areas, one at about 840 meters above sea level and another at about 3740 meters below sea level?

a) Because the oceans are filled with water, which depresses the ocean floor
b) These two levels represent average continent and ocean heights resulting from isostasy.
c) Trenches are found only in the oceans.
d) The oceans cover 70 of the Earth.
e) Both continents and the sea floor are mostly flat.

Question 2

During a hurricane, which of the following is UNLIKELY to occur on a barrier island?

a) Increased longshore transport will erode much sand from the beaches.
b) TV reporters will lean into the wind and rain on camera to appear heroic.
c) Waves and storm surge will cover large parts of the island.
d) Wave erosion will cut new passes through the island.
e) There will be little change in size and shape to the island.