Most U.S. beaches are shrinking or encroaching on the land rather than growing or moving seaward, so the land of the U.S. is get
ting smaller, not bigger. Which of the following is a likely cause for loss of at least some of our beaches?
a) Global sea level is rising, covering more land.
b) Dams on rivers have increased sediment delivery to the beaches.
c) Global sea level fell as the ice-age ice sheets grew, and this caused rivers to deliver much sediment to the coast.
d) Global sea level fell as the ice-age ice sheets grew, exposing sand to the attack of large waves during winter storms, so beaches are now being removed.
a) Global sea level is rising, covering more land.
Explanation:
The fact as the sea rises, the beaches are pushed landward. They, are known to causes wetland flooding, and erosion and devastating impacts on the coastal islands and create soil contamination effects.
And the earth loses about 28,800 square miles of land due to the rose of the sea levels and storm surges. Hence the lands in the U.S are getting smaller and due impacts of the beach transformations that take place.
