InterviewSolution
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                                    John wanted to know about the composition of air. He asked Sam to explain it to him whether air is composed of a single component or more than one component. To reply this query Sam made the following statements: Statement I: Air is a mixture of gases, water vapour and dust particles. Statement II: Air is composed of only one gas that is nitrogen. Statement III: Air is composed of two gases, nitrogen and oxygen only. Statement IV: Air is made up of more than one components. Which of the above statement(s) are correct? | 
                            
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Answer»  John wanted to know about the composition of air. He asked Sam to explain it to him whether air is composed of a single component or more than one component. To reply this query Sam made the following statements: Statement I: Air is a mixture of gases, water vapour and dust particles. Statement II: Air is composed of only one gas that is nitrogen. Statement III: Air is composed of two gases, nitrogen and oxygen only. Statement IV: Air is made up of more than one components. Which of the above statement(s) are correct?  | 
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