Where coastal rock is softer, waves erode the land faster

Headlands and bays are created where there are bands of hard and soft rock which meet the coastline at right angles. Softer rock is eroded more quickly and erodes backwards to form bays (which may have beaches). The harder rocks are more resistant to erosion and jut out into the sea to form exposed headlands

i would say the answer is food.

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c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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