Why are swimming tubes and life jackets filled with air used by people who do not know how to swim . Give 50 words.
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Answer:The material inside your life jacket traps air to help keep you afloat. It traps in the air when your jacket is submerged underwater. The trapped air weighs less than the water. As a result, the water pushes up more than the jacket pushing down. This allows your jacket to float and remain buoyant and can hold up extra weight without sinking.
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