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The more massive a star is, the less its life time.
Generally, yes. For stars on the main sequence, meaning that they fuse hydrogen at their cores, mass, size, color, brightness, and temperature are all closely related. More massive stars are larger, brighter and hotter than less massive ones. The least massive stars are red. As you go to more massive stars color changes to orange, then yellow, then white, and finally to blue for the most massive stars.
In absolute terms larger (more massive) stars shine more brightly than less massive ones. In relative terms (as seen from Earth) more distant stars appear dimmer than closer ones.
Hydrogen, helium, and carbon fuel are found in more massive stars. The diameter of more massive stars is bigger. Helium is found in greater abundance in more massive stars. The weight of more massive stars is greater.
If the same force is constantly applied to two movable objects, the more massive one will accelerate. Also, the more massive one will accelerate more slowly than the less massive one.
Stars are made mostly from hydrogen. The more hydrogen available when a star is formed, the more massive it will be.
If by smaller, you mean ones with less mass, then the answer is yes. This is because while smaller stars have less mass to burn. They burn it more slowly and more efficiently thereby increasing their lifespan.
No, there are more massive galaxies with stars in them.
More massive stars usually appear brighter, therefore bluer. Less massive being redder, and yellow in the middle. I could be wrong.
A binary star is two stars which orbit their mutual center of mass. The more massive star will move more slowly, while the lighter star will move more quickly.
No, some are hotter/cooler, some are more/less massive, but they all follow the same life processes.