Nature has a way to show off itself. First, there was Tsunami and now, in the shoreline north of Sydney, you have a giant bubble bath! According to scientist, foam is created by impurities in the ocean, such as salts, chemicals, dead plants, decomposed fish and excretions from seaweed. The impurities are churned up together by powerful currents, causing bubbles to form. These bubbles stick to each other as they are carried below the surface by the current towards the shore. As a wave starts to form on the surface, the motion of the water causes the bubbles to swirl upwards and, massed together. The foam thus produced surfs towards the shore and there you are, you have a bubble bath of impurities. Take back what you give to nature!
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