Answered

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Look at the levels of carbon dioxide in the data table below.

Carbon in the Atmosphere

\begin{tabular}{|c|c|}
\hline
Year & [tex]$CO_2$[/tex] (ppm) \\
\hline
1960 & 317 \\
\hline
1970 & 326 \\
\hline
1980 & 339 \\
\hline
1990 & 354 \\
\hline
2000 & 371 \\
\hline
2010 & 390 \\
\hline
\end{tabular}

What quantity of carbon dioxide was in the atmosphere in 1980?

A. 217 ppm

Sagot :

GinnyAnsweridn
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).
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