Question

Question 5
Explain the differences between pure air and polluted air.

Answer 1

$\begin{array}{cc}\text{Pure Air}& \text{Polluted air}\\ \text{Pure air contains around 78}\%& \text{Polluted air includes gases}\\ \text{nitrogen, 21\% oxygen, and 0.03\% carbon}& \text{like sulfur dioxide, nitrogen}\\ \text{dioxide also small amounts of}& \text{dioxide, carbon dioxide, etc.}\\ \text{argon, methane, ozone, and water vapours.}& \text{and other particulate matter.}\\ \text{Smog is not present.}& \text{Smog can be present.}\\ \text{Not harmful for human beings}& \text{Harmful for human beings as}\\ & \text{cause diseases like asthma}\end{array}$