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Divers swim through a kelp forest.


You sit in diving gear on the edge of a boat. You’re in a bay off the coast of California. Small, green things


fl oat by in the water. T ey look like water balloons. T ey’re the tops of a type of seaweed called kelp.


You’re here to study the kelp and other living things. You’re are marine biologist.


4 NATIONAL GEOGRAPHIC EXPLORER


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