Ruben wants to create a chart that contrasts the four outer planets. which chart should he use?

He should use column or clustered column chart.

On the MS word or MS excel there many types of charts which can be produced according to the type of information which is used to plot and the purpose of plotting.

For example if you want to plot the values of an or different events on the chart you just draw line chart.

But for charts which are used to compare and contrast the information, then column or scattered column charts are used.

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