Turbidity Currents

Question 1

Instructions: Answer the following questions in relation to both the lecture and the film “Beach: A River of Sand”. Be aware that some questions direct you to use the lecture only when answering.

At the end of the summer season, which would you expect to see at a typical beach:

Select one:

a. Much more sand piled up on the beach relative to the end of the winter season.

b. Much less sand piled up on the beach relative to the end of the winter season.

c. The same amount of sand should be at the beach no matter what season it is.

Question 2

Where does the sand on our beaches in California primarily originate from?

Select one:

a. Granites of the Sierra-Nevada mountains

b. Longshore current

c. Streams

d. Turbidity currents

Question 3

How does this sand travel from its origin to a California beach?

Select one:

a. Granites of the Sierra-Nevada mountains

b. Longshore current

c. Streams

d. Turbidity currents