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SDSU OCEANS 100 EXAM 3 QUESTIONS AND COMPLETE SOLUTIONS (LATEST )
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  • Course
  • OCEANS 100
  • Institution
  • OCEANS 100

the coastal region (6 parts) - CORRECT ANSWER 1) coast 2) offshore 3) beach 4) berm 5) notch 6) wave coast - CORRECT ANSWER land extending inland as far as marine is seen; land adjacent to the beach affected by the ocean offshore - CORRECT ANSWER extends from breakers to edge of contine...

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  • September 14, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • the coastal region 6 parts 1 coast 2 offshore
  • coast land extending inland as far as marine is se
  • offshore extends from breakers to edge of continen
  • beach shore and nearshore very active

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  • OCEANS 100
  • OCEANS 100

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SDSU OCEANS 100 EXAM 3 QUESTIONS AND
COMPLETE SOLUTIONS (LATEST )
the coastal region (6 parts) - CORRECT ANSWER 1) coast 2) offshore 3) beach 4) berm 5) notch 6) wave



coast - CORRECT ANSWER land extending inland as far as marine is seen; land adjacent to the beach
affected by the ocean



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



beach - CORRECT ANSWER shore and nearshore; very active



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



notch - CORRECT ANSWER cave cut into sea cliff by waves



wave-cut platform - CORRECT ANSWER flat eroded bedrock at beach created by wave erosion



effects of WAVE ENERGY - CORRECT ANSWER excavates notches into rocks ---> unstable cliff---> rivers
and cliff erosion ---> source of sand to the beach



wintertime beach - CORRECT ANSWER short, high waves; high energy; rocky beach and narrow berm;
algae growth due to pollution



summertime beach - CORRECT ANSWER long, low waves; low energy; sandy beach and wide berm



longshore current - CORRECT ANSWER waves move at an angle and flow parallel coast; currents come
from N to S; currents move left to right and wrap around coastline

, depositional coast - CORRECT ANSWER flat coast b/c of passive margin; sediment comes from rivers;
SUBMERGENT COAST; ex- deltas, barrier islands



erosional coast - CORRECT ANSWER tectonic uplift b/c active margin; marine terraces made from
earthquakes; EMERGENT COAST; ex- cliffs, headlands, sea caves, arches, stacks



Atlantic Coast - CORRECT ANSWER depositional; passive margin; no plate boundary; shoreline rises and
ocean migrates inland



Pacific Coast - CORRECT ANSWER erosional; active margin; plate boundary; shoreline rises and ocean
does not migrate inland



Gulf Coast - CORRECT ANSWER below sea level, ocean migrates farthest inland



causes of sea level change - CORRECT ANSWER 1) climate change 2) plate tectonics



cause of sea level change (climate change) - CORRECT ANSWER global warming = sea levels rise

ice age = sea levels drop



cause of sea level change (plate tectonics) - CORRECT ANSWER fast-spreading: sea levels rise; ocean
basin cannot hold

slow-spreading: sea levels drop



seawalls - CORRECT ANSWER coastal stabilization; protect houses from erosion; in long run, increase
erosion ---> sea level rise ---> smaller beach and starving berm



4 types of pollution - CORRECT ANSWER petroleum, sewage, heavy metals, solid waste/trash



petroleum - CORRECT ANSWER biodegradable crude oil; non-biodegradable refined oil



sewage - CORRECT ANSWER treated and untreated; TJ sewage upwells to SD

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