Longshore drift

What can move waves?

• (1)sand and pebbles

• (2)rocks

• (3)ships

Where does the prevailing wind blow?

• (1)the waves towards the mountains at an angle

• (2)the waves towards the shore at an angle

• (3)the waves towards the bay at a mountain

What is called that sand and pebbles like a zig-zag pattern along the shore?

• (1)longshore drift

• (2)bay

• (3)mouth of river

What problems are cause by the longshore drift?

• (1)have pump sand on the shore to replace the sand/blocked sand and shingle at the harbour

• (2)flooding

• (3) left big rocks on the shore

If the waves don't have the energy to carry sand and shingle, what will happed on a bay or mouth of a river?

• (1)deposit or drop the materials

• (2)appeared big rocks

• (3)appeared a lot of trees

What is it called that a high pile of sand and shingle from a ridge across part of the bay or river mouth?

• (1)deposit

• (2)spit

• (3)longshore drift

What is a bar?

• (1)a spit grows all the way across a bay

• (2) a pit grows at the river mouth of river

• (3) a spit grow at the coast

What is it called that the shallow pool of water trapped behind the bar?

• (1)lagoon

• (2)spit

• (3)bar

length and width of Lagoa dos Patos lagoon

• (1)280km long and width about 7km

• (2)280 km long and a maximum width of about 70 km

• (3)820km long and witdth of about 70 km

Where is the Farewell spit ?

• (1)on south Island, New Zealand

• (2)on north Island, New Zealand

• (3)in Brazil