Ocean 100- Exam 3 (SDSU) UPDATED Exam Questions and CORRECT Answers

Ocean 100- Exam 3 (SDSU) UPDATED
Exam Questions and CORRECT Answers
coast - CORRECT ANSWER - land extending inland as far as marine influence is seen



offshore - CORRECT ANSWER - extends from breakers to edge of continental shelf



beach - CORRECT ANSWER - shore and nearshore; very active (where waves break)



berm - CORRECT ANSWER - dry area at the foot of coastal cliff (where the sand is and
you put your towel)


Berm floods when.... - CORRECT ANSWER - -very high tide
-tsunami
-storm swells/ breakers


wave- cut platform - CORRECT ANSWER - flat eroded bedrock at beach, by wave energy



notch - CORRECT ANSWER - cave cut into the sea cliff by wave energy



near shore - CORRECT ANSWER - where breakers occur



coastline - CORRECT ANSWER - line that separates beach from land



sources of sand to the beach - CORRECT ANSWER - - continental erosion
- rivers dumping sediment into the sea

, summertime beach - CORRECT ANSWER - -wave energy is low
-sandy beach
-wide berm


wintertime beach - CORRECT ANSWER - -wave energy is high
-rocky beach
-narrow berm


drift - CORRECT ANSWER - net movement of sand grains (longshore drift)



longshore current - CORRECT ANSWER - movement of water in surf zone, parallel to the
coast


why does longshore current move water parallel to the coast - CORRECT ANSWER --
waves come at an angel
-depends on where waves first start breaking
-due to the winds


where does the longshore current move in Southern California - CORRECT ANSWER -
N-S


how does sand get moved - CORRECT ANSWER - -rivers supply sediment
-longshore currents carry sands
-dump into submarine canyon


what are the 2 types of coasts - CORRECT ANSWER - depositional coast and erosional
coast


depositional coast - CORRECT ANSWER - -not active