Let's analyze the data in the given table to determine the quantity of carbon dioxide in the atmosphere in the year 1980.
Here is the given data table:
[tex]\[
\begin{array}{|c|c|}
\hline
\text{Year} & \text{CO}_2 \,(\text{ppm}) \\
\hline
1960 & 317 \\
\hline
1970 & 326 \\
\hline
1980 & 339 \\
\hline
1990 & 354 \\
\hline
2000 & 371 \\
\hline
2010 & 390 \\
\hline
\end{array}
\][/tex]
We are looking for the carbon dioxide (CO₂) level in the year 1980.
1. Locate the year 1980 in the data table.
2. Observe the corresponding value of CO₂ in parts per million (ppm) for that year.
From the table:
[tex]\[
1980 \quad \rightarrow \quad 339 \, \text{ppm}
\][/tex]
Therefore, the quantity of carbon dioxide in the atmosphere in the year 1980 was 339 ppm (parts per million).
