The air over industrial cities has a usually higher amount of one of the following components than normal air. This component is:
Oxygen
Argon
Carbon dioxide
Nitrogen
Explanation:
Answer:
So, the correct option is Carbon dIoxide.
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?
The component air which comprises more than the 34th composition of air is