Smoke and constituents of air — task. Science CBSE, Class 6.

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Select the right choice:

1.

Why the policeman is covering his nose and mouth?

To protect from harmful dust particles
To prevent from sun
To beautify him

2. In the figure given below, the composition of air is given as a pie chart. Read the given question and answer them accordingly.

In the given pie chart, blue colour denotes which gas (its percentage)?

\(80\%\) Nitrogen
\(78\%\) Nitrogen
\(68\%\) Nitrogen
\(79\%\) Nitrogen

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