The 5-W's are: who, what, when, where, and why.
The Doughnut chart and pie chart, compares relative values of different categories to the whole
A bar chart.
A spectrum is a chart that arranges waves into different categories according to wavelength.
A bar chart or a pie chart.
Every pie chart has the same scale: " 360 degrees = the total of all categories "
electromagnetic spectrum
electromagnetic spectrum
It is called the "key".
The left side of a column chart typically displays the categories or labels being measured, which can represent different groups, time periods, or items. This axis is usually labeled as the y-axis in a vertical column chart. The values corresponding to these categories are represented by the height of the columns extending from the right side of the chart.
The box that identifies the colors assigned to categories in a chart is called the "legend." The legend provides a key that helps viewers understand which colors correspond to specific data categories, making it easier to interpret the information presented in the chart.
Usually a column chart, but it depends on what exactly you want to do and the nature of the data.
No, you can also use Pie chart and Doughnut Chart.