Beach: A River of Sand, geology homework help

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.

https://amara.org/en/videos/d1L73yFVviuq/info/beac…

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

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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

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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

Question 4

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Turbulent water currents that flow within the surf zone parallel to the shoreline are called?

Select one:

a. Turbidity currents

b. Longshore current

c. Longshore transport

d. Upwelling

Question 5

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Sand that is carried by turbulent water currents that flow within the surf zone parallel to the shoreline are called?

Select one:

a. Turbidity currents

b. Longshore current

c. Longshore transport

d. Upwelling

Question 6

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According to the lecture, what is the best definition of a spit from the choices given below?

Select one:

a. A spit is an elongated ridge of sand extending from a headland into the mouth of an existing bay

b. A spit is sand that extends out from a harbor that has to be dredged regularly

c. A spit is sand that has been deposited by the longshore current

d. A spit is defined as low-energy waves that travel parallel to the shoreline

Question 7

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What transports sand to the location the spit is created in?

Select one:

a. Turbidity currents

b. Longshore current

c. Upwelling

d. Downwelling

Question 8

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What happens to allow the sand to be deposited and create the spit?

Select one:

a. Energy increases within the longshore current.

b. Energy decreases within the longshore current.

c. Energy stays the same within the longshore current.

Question 9

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A stretch of coastline with no sand at any time of the year most likely has:

Select one:

a. High energy waves hitting it all year long.

b. Low energy waves hitting it all year long.

c. No waves are hitting that coastline at all.

note ill post quiz 2 after this is answer in order to check and submit