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Cabrillo Beach Trip Quiz

 1. 

= 1 point) Please refer to Map #1.  What side of the peninsula are we on?
a.
North
c.
East
b.
South
d.
West
 
 
Please refer to Map #1.  Each answer may be used once, more than once, or not at all.
a.
San Pedro
c.
Palos Verdes
b.
Los Angeles
d.
Catalina
 

 2. 

= 1 point) What peninsula are we on?
 

 3. 

= 1 point) Which bay is closest to where we are located?
 

 4. 

= 1 point) Which river is closest to where we are located?
 

 5. 

= 1 point) Which basin is closest to where we are located?
 

 6. 

= 1 point) Which submarine canyon is closest to where we are located?
 

 7. 

= 1 point) Which island is closest to where we are located?
 

 8. 

= 1 point) How do submarine canyons form?
a.
Via rivers, which erodes the continental shelf and then carves a canyon into the continental slope.
b.
Via the longshore current, which erods the continental shelf and then carves a canyon into the continental slope.
c.
Via the waves, which erodes the continental shelf and then carves a canyon into the continental slope.
 

 9. 

= 1 point) What is the importance of submarine canyons?
a.
Removes excess sand from the coastal region
b.
Provides oxygen to the deeper parts of the ocean
c.
Is the genesis for the longshore current
 

 10. 

= 1 point) Please refer to Map #1.  If sea level were to drop 100 meters would there be any canyons exposed?
a.
Yes
b.
No
 

 11. 

= 1 point) How would you describe the sediment, beach slope and wave energy at stop #1, the Salt Marsh? = there can be more than one answer;  select all that apply)
 a.
Mud
 e.
Steep Slope
 b.
Fine-medium sand
 f.
Very low wave energy
 c.
Flat slope
 g.
Moderate wave energy
 d.
Moderate slope
 h.
Moderate-strong wave energy
 

 12. 

= 1 point) For Stop #1, the Salt Marsh, how do the waves compare here compared to those at stops 2, 3 & 4?
a.
Gentler
b.
Stronger
c.
About the same
 

 13. 

= 1 point) How would you describe the sediment, beach slope and wave energy at stop #2, the Inner Beach? = there can be more than one answer;  select all that apply)
 a.
Mud
 e.
Steep Slope
 b.
Fine-medium sand
 f.
Very low wave energy
 c.
Flat slope
 g.
Moderate wave energy
 d.
Moderate slope
 h.
Moderate-strong wave energy
 

 14. 

= 1 point) For Stop #2, the Inner Beach, how do the waves compare here compared to those at stops 3 & 4?
a.
Gentler
b.
Stronger
c.
About the same
 

 15. 

= 1 point) What is the function of a breakwater?
a.
The breakwater prevents most waves and longshore transport from entering the harbor.
b.
The breakwater prevents most waves from hitting the cliffs and reduces erosion
c.
The breakwater The breakwater prevents sand from migrating down the coast.
 

 16. 

= 1 point) How would you describe the sediment, beach slope and wave energy at stop #3, the Outer Beach? = there can be more than one answer;  select all that apply)
 a.
Mud
 e.
Steep Slope
 b.
Medium sand
 f.
Very low wave energy
 c.
Flat slope
 g.
Moderate wave energy
 d.
Moderate slope
 h.
Moderate-strong wave energy
 

 17. 

= 1 point) How do the waves at Stop #3 = Outer Beach) compare to those along the nearby cliffs?
a.
Gentler
b.
Stronger
c.
About the same
 

 18. 

= 1 point) How would you describe the sediment, beach slope and wave energy at stop #4, the Natural Beach? = there can be more than one answer;  select all that apply)
 a.
Coarse sand and cobbles
 e.
Steep Slope
 b.
Medium sand
 f.
Very low wave energy
 c.
Flat slope
 g.
Moderate wave energy
 d.
Moderate slope
 h.
Moderate-strong wave energy
 

 19. 

= 1 point) The correct name of the bedrock that makes up the cliffs behind Stop #4, the Natural Beach, is:
a.
Monterey Formation,  Cabrillo Shale Member
b.
Cabrillo Formation, unknown member
c.
Monterey Formation,  Altamira Shale Member
d.
What bedrock?
 

 20. 

= 1 point) Are the rocks that form the cliff behind Stop #4 = Natural Beach) easily eroded or wave-resistant?
a.
easily eroded
b.
wave-resistant
 

 21. 

= 1 point) At Stop #4, the Natural Beach, what is the danger to the houses at the top of the cliff?
a.
The rocks that comprise the cliff are too hard, making it difficult to build on.
b.
The rocks that comprise the cliff are easily eroded, making it easy for the houses to slide onto the beach below.
c.
There is no danger to the houses at the top of the cliffs.
 

 22. 

= 1 point) When do you think a sea cliff erodes the most?
a.
During the winter, when there is more rain and stronger waves to erode the rocks in the cliff.
c.
During the summer, when there is no rain and weak waves to erode the rocks in the cliff.
b.
During the spring, when there is a small amount of rain and mild waves to erode the rocks in the cliff.
d.
During the fall, when there is no rain and the waves are moderate to erode the focks
 

 23. 

= 1 point) What is forming beneath the waves at Stop 4, the Natural Beach?
a.
A sea cave
c.
A wave-cut terrace
b.
A sea arch
d.
A tombolo
 

 24. 

= 1 point) What is the relationship between grain size and slope steepness?
a.
The smaller the grain, the flatter the beach
b.
The smaller the grain, the steeper the beach
c.
The larger the grain, the flatter the beach
 

 25. 

= 1 point) What is the relationship between wave energy and slope steepness?
a.
The weaker the wave energy, the steeper the beach
b.
The weaker the wave energy, the flatter the beach
c.
The stronger  the wave energy, the flatter the beach
 



 
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