Rivers and Coasts Assesment

Question 1

2 Types of erosion?

Answer 1

Attrition
Abrasion

Question 2

What is Attrition?

Answer 2

Rocks bashing together to become smoother or smaller

Question 3

What is Abrasion?

Answer 3

Rocks hurdled at the base of a cliff to break peices apart

Question 4

Two hard engineering strategies?

Answer 4

Straightening channel
Deepening or widening river

Question 5

Two soft engineering strategies?

Answer 5

Afforestation
Flood plain zoning

Question 6

What is flood plain zoning?

Answer 6

Land is used to minimize flooding

Question 7

How are spits formed?

Answer 7

Material moved along the coast via LSD
Coastline changes direction
Material doesn’t change direction
Material is deposited beyond a headland
Overtime the spit grows
Develops a hook.

Question 8

How is a beach formed?

Answer 8

Deposition and sheltered areas

Question 9

How is a river shaped in upper course?

Answer 9

Valley is V-shaped
Steep and narrow channel
Erosion

Question 10

How is a river shaped in middle course?

Answer 10

Valley becomes wider and flat
Channel becomes wider and deeper
Erosion and Deposition

Question 11

How is a river shaped in lower course?

Answer 11

Valley becomes flat and wide floodplain
Channel at its widest and deepest
Deposition dominates

Question 12

Two types of transportation?

Answer 12

Solution
Suspension

Question 13

What is solution?

Answer 13

Minerals dissolve in water

Question 14

What is suspension?

Answer 14

Sediment is carried along the flow of water