Question

multiple choice 1 point the following is true about main sequence stars: the hotter the star, the brighter the redder the star, the hotter the cooler the star, the brighter brighter stars are closer than 10 parsecs while dwarfs

Explanation:

For main sequence stars, the Hertzsprung - Russell (HR) diagram shows that temperature (related to color/hotness) and luminosity (brightness) are correlated. Hotter main sequence stars (like O, B types) are more luminous (brighter) because they fuse hydrogen at a faster rate, producing more energy. Redder stars are cooler, and cooler main sequence stars are less bright. The distance of a star isn't determined solely by brightness (since brightness also depends on luminosity). So "the hotter the star, the brighter the star" holds for main sequence stars.

Answer:

the hotter the star, the brighter the star