ocean 100 sacramentogrilo exam 3 UPDATED ACTUAL Exam Questions and CORRECT Answers

ocean 100 sacramentogrilo exam 3
UPDATED ACTUAL Exam Questions and
CORRECT Answers
what are the parts of the coastal region? - CORRECT ANSWER - 1. coast
2. offshore
3. beach
4. berm
5. wave-cut platform
6. notch


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 + nearshore (area between coast & shore); very
active


berm - CORRECT ANSWER - dry area at the foot of the coastal cliff - > sand



wave-cut platform - CORRECT ANSWER - flat, eroded bedrock by waves



notch - CORRECT ANSWER - cave cut into sea cliff by waves



what does wave energy do to a coastal cliff over time? - CORRECT ANSWER - erodes it



what can you say about the southern california sand supply? - CORRECT ANSWER -
mostly comes from cliff erosion

, what are the principal sources of sand to the beach? - CORRECT ANSWER - 1. erosion of
cliffs
2. river run-off


what are the 3 ways the berm can be flooded? - CORRECT ANSWER - 1. tsunamis
2. high/spring tides
3. great storm surges


what is the significance of the berm? - CORRECT ANSWER - 1. during the summer,
wave energy is low (sandy beach - wide berm)
2. during the winter, wave energy is high (rocky beach - narrow berm)


longshore current - CORRECT ANSWER - movement of water in surf zones



what direction does the longshore current flow? - CORRECT ANSWER - parallel to the
shore


what direction does the longshore current go in southern california? - CORRECT
ANSWER - north to south



what are the 2 types of coasts? - CORRECT ANSWER - 1. erosional
2. depositional


erosional coast - CORRECT ANSWER - 1. emergent coast
2. tectonic uplift
3. cliffs
4. headlands, sea caves, arches, stacks, marine terraces