Question d says to “Name each of the processes or reactions occurring in parts a-c above.” Do I write that it’s an endothermic process or that the process is evaporation?

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Why is it possible for different microorganisms to extract energy not only from carbohydrates and other biological molecules but from a large variety of substances?