Waves & Tides
Waves
Waves are caused when wind moves across the surface of the ocean. The friction between the air molecules and the water molecules causes energy to be transferred from the wind to the water. This causes waves to form. Along rocky shores there isn't enough room for water to move freely, so waves break over the rocks. Plants and animals living on rocky shores have adapted to the waves.
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Tides
The tide's rise and fall greatly effects the biological factors on the rocky shores. When the tide falls, plants and animals on rocks are exposed to air. Plants and animals adapt to the rise and fall of the tides.
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