Quiz #1
7.1
breakwaters - A barrier that protects a harbor or shore from the full impact of waves.
silting - A sedimentary material consisting of very fine particles intermediate in size between sand and clay
sea change - when people move from the city to start a new life by the sea

urban stormwater - stormwater that can contain sediment, bacteria, heavy metals and organic chemicals into the ocean.

silting - when a floor bed gets covered with silt


tidal flushing - an action of saltwater estuary during high tide twice a day

dredging - Clean out the bed of (a harbor, river, or other area of water) by scooping out mud, weeds, and rubbish with a dredge.

introduced plants - plants that have been introduced from other countries.

7.2
ground swell - when waves travel a longer distance of ocean before hitting the coast.
plunging waves - break on the beach where the slope is moderately steep.
spilling waves - break far from the shore with gentle slopes
surging waves - occure on steep beaches, the waves roll up the steep face reather than breaking over it, causing erosion.
wind swell - when waves travel only a short distance of ocean before hitting the beach.
wave height - the vertical distance between the trough and the peak of a wave
wavelength - the horizontal distance between wave peaks
fetch - the distance that wind travels over the ocean to form waves
surf and swash zone - The area where the waves break.