Once all the hydrogen is gone, the star starts to collapse. if it collapses enough, what fuel will now be used? what color will it burn?

Most short-period comets do not have randomly oriented orbits because

What are the north and south poles of a solenoid change with?

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew