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\begin{tabular}{|c|c|c|c|}
\hline
System & Key word & \multicolumn{2}{|c|}{SYSTEM FEATURES} \\
\hline
a. & Air & Oxygen & \\
\hline
b. & Land & & Mountains \\
\hline
c. & Hydrosphere & Ocean & \\
\hline
\end{tabular}

The amount of gases in the atmosphere was studied. It was found that the composition of air is mostly nitrogen and oxygen, with smaller amounts of other gases. Nitrogen makes up about [tex]$78\%$[/tex] of the air, while oxygen makes up about [tex]$21\%$[/tex]. The remaining [tex]$1\%$[/tex] is made up of other gases.

Use this information and record the findings in a table.



Answer :

GinnyAnswer
Sure, let's record the given findings in a table format. The percentages for the composition of air are given as follows:

- Nitrogen: 78%
- Oxygen: 21%
- Other gases: 1%

Here is the recorded information in a table format:

[tex]\[ \begin{array}{|c|c|} \hline \text{Gas} & \text{Percentage} \\ \hline \text{Nitrogen} & 78 \% \\ \hline \text{Oxygen} & 21 \% \\ \hline \text{Other Gases} & 1 \% \\ \hline \end{array} \][/tex]

This table summarizes the composition of air, showing the distribution of the different gases by percentage.

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