Name one type of data that H-R diagrams ( Hertzsprung-Russel ) do not show or provide.

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The Hertzsprung-Russell diagram (HR diagram)

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The H-R Diagram plots stars such that there are four major groups. The Supergiants are cool stars, which are very large and very bright.

The Hertzsprung-Russell diagram (HR diagram) is one of the most important tools in the study of stellar evolution. Developed independently in the early 1900s by Ejnar Hertzsprung and Henry Norris Russell, it plots the temperature of stars against their luminosity (the theoretical HR diagram), or the colour of stars (or spectral type) against their absolute magnitude (the observational HR diagram, also known as a colour-magnitude diagram).

Explanation:

idk but here u go

law of conservation of matter

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.