Extremely large main sequence stars consume their fuel quickly and burn hot and bright. As they consume all their hydrogen, they become supergiants. Describe the changes that take place, in terms of luminosity and temperature, to
these large main sequence stars as they exhaust their hydrogen supplies.

Ifound this on google “the middle ear contains three tiny bones known as the ossicles: malleus, incus, and stapes. the ossicles were given their latin names for their distinctive shapes; they are also referred to as the hammer, anvil, and stirrup, respectively.” i hope this you for what your looking for

The answers would be: 1: the liquid only contains one compound4: the liquid is a pure substance

Independent variable is something that is changed in a experiment.