4.4 Human Activity

Question 1

Name two hard engineering processes

Answer 1

Groynes and sea wall

Question 2

Name two soft engineering techniques

Answer 2

Beach nourishment and slope stabilisation.

Question 3

Give two positives about groynes

Answer 3

Good for tourists

Builds up beaches

Question 4

Give two negatives about groynes

Answer 4

Looks ugly
Very expensive
Erosion is worse down shore

Question 5

Two positives of sea walls

Answer 5

Reflects wave energy
Out to sea
Very effective

Question 6

Two negatives of sea walls

Answer 6

Very expensive
Makes beach access hard
Looks ugly

Question 7

Two positives of beach nourishment

Answer 7

Absorbs water
Relatively cheap
Looks natural

Question 8

Two negatives of beach nourishment

Answer 8

Very high maintenance
Sediment washes out to sea
1/2 a million per km

Question 9

Positives of slope stabilisation

Answer 9

Keeps cliff in place

Reduces mass movement

Question 10

Negatives of slope stabilisation

Answer 10

Difficult to install

Up to one million for one slope

Question 11

How does a storm surge occur

Answer 11

High tide is assisted by storm winds causes the water to be forced into the estuaries.

Question 12

In the 2013 storm surge what were the losses

Answer 12

1400 homes flooded
100 million cost of damage
2 deaths