1. Large chunks of rock end up as pebbles by attrition and get smoother and more rounded by abrasion.

2. Erosion: solution
Sea water is slightly acidic and dissolves soluble material from the rock.
Sea water dissolves rocks made of calcium carbonate such as limestone and chalk

3. Questions 1, 2 and 3 page 53 1- erode, transport and deposit material.
2- hydraulic action. Solution and abrasion 3-
a) Y has been in the water longer. It is
smoother, because its edges and corners
have been worn away through collisions
With other pebbles.
b) Abrasion

4. Transport: longshore drift
Draw an annotated diagram to explain how pebbles are moved along the beach by the waves.

5. Groynes are barriers of wood or stone down a beach, to stop sand being washed away.

6. Answers To stop the beach being eroded away.
Yes; more sand has built up on one side of each groyne (the side facing the waves) than the other.
from the south west.
The longshore drift flows past the groynes from that direction and some of the sand gets trapped.

7. Deposition
When sand and pebbles are not moved by destructive waves, they are deposited by constructive waves and form beaches.
DEPOSITION
EROSION
TRANSPORT