In an h-r diagram, most stars are found in a diagonal band from the upper left to the lower right, which is called the__

The correct answer is main sequence stars.

Explanation:

A plot of stars absolute magnitude versus the surface temperature is considered as the H-R diagram. There are three prime components of the H-R diagram:  

A section in the H-R diagram where the stars devote the majority of their lifetime is called the main-sequence. It refers to the band that elongates from the upper left side to the lower right side. Post main sequence, the star either turns into a super red giant or red-giant.  

idk

explanation:

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.