17
b-onshore.
15-the width of the beach shrinks and expands with the change of the
weather and seasons : a- true.
b-false.
16-sand budgets allow coastal engineers :
a-to replenish the beach with the appropriate amount of sand.
b-to keep track of changes in the sediment volume of a beach.
c-to remove the unnecessary sand from the coast.
17-sand losses in a shoreline : a- are referred to as debits.
b-are referred to as credits.
18-sand sources in a shoreline : a- are referred to as credits .
c- Are referred to as debits.
19-sand sources include : a-removal of sand by wind and erosion.
b-river input , sea cliff erosion….
20-sand debits include : a-longshore and offshore transport of sand by
wind erosion.
b-sediment deposit by chemical weathering on land.
21-barrier island : a-are islands surrounded by fringing reefs.
b-are shore-parallel elongated accumulation of sand that are constructed
by waves and build vertically by the accumulation of sand from wind
transport.
c-islands surrounded by lagoons.
22-cliffs are very vulnerable to storms , a single storm can produce a
noticeable change in their appearance :
a-true.
b-false.