What I have learnt so far(in year 8)
COASTS 🚩 
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Definition: A coast is the meeting point of land, sea and atmosphere and all three of them affect the nature of the coastline
What are the 4 types of coastal erosion?
Hydraulic action
Attrition
Abrasion
Corrosion/Solution
First of all, We have been looking about coasts which was the very first topic of year 8.
The pebbles in the river smash into each other becoming smaller and rounder.
When the sheer power of the water has the ability to dislodge rock particles.
The river scrapes its pebbles along the bed and bank, wearing it away.
The river water dissolves the bed and bank.
Erosional landforms at the coast
Headlands & Bay
There are 5 different types of erosional landforms which are:
Cave
Arch
Stack
Stump
Fault