Why do large, broad beaches have gradual slopes?
a. They have coarse particles.
b. There is a minimal transport of sediments back to the ocean.
c. They are not in equilibrium.
d. They have a large area for wave energy to dissipate.
ANS: D
Fine grains are quickly returned to the beach because particles interlock and discourage water from
seeping into the beach itself. Information can be found in the section Beaches Dominate Depositional
Coasts.
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Which of the following is not true of peridotite?
A) It is denser than basaltic rocks. B) It is composed almost entirely of olivine and pyroxene. C) It is the main constituent of the Earth's crust. D) It is rarely found at the Earth's surface.
How are weather observations shared and distributed among different nations?
The U.S. is unique in that all eleven climate types occur within its boundaries
a. True b. False Indicate whether the statement is true or false
Calcareous ooze is an example of which of the following sediment types?
A) Biogenous Sediment B) Cosmogenous Sediment C) Hydrogenous Sediment D) Lithogenous Sediment E) Terrigenous Sediment