currents

Question 1

what are currents?

Answer 1

the permanent or seasonal movement of surface water in the seas

Question 2

what are the types of currents?

Answer 2

longshore drift
rip currents
upwellings

Question 3

what is longshore drift?

Answer 3

when waves approach the coast at an angle creating a flow of water that runs parallel to the coastline

Question 4

how does longshore drift affect a coastline?

Answer 4

transports material parellel to the coastline

Question 5

what are rip currents?

Answer 5

strong currents moving away from the shoreline

develop when water is piled up along the coastline so are pushed back out to sea

Question 6

what are upwellings?

Answer 6

moment of cold water from the deep ocean towards the surface