Question

during a classroom activity Biology teacher show that a transparent water in test tube turned milky white in colour on continuous blowing of air from his mouth while a child could not produce the same result in the same water by blowing similar amount of year from cycle pump. substantiate your answer with suitable reason and reaction​

Answer 1

We inhale oxygen and exhale carbon dioxide.
When lime water ca(oh)2 react with CO2 it became milky.
When we release CO2 in lime water it became miky..


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