Which of the following pairs of substances would best be separated using a centrifuge, and why?
cream and milk, because of their difference in density
cream and milk, because of their difference in boiling point
salt and water because of their difference in magnetism
salt and water, because of their difference in solubility

Centrifugation is a separation method that is based on the difference in density between the objects. Cream and milk can be separated by Centrifugation  because of their difference in density.

Centrifugation depends on the density of substances. It is commonly used to separates mixtures in the medical field such as the components of blood.

In this case, Centrifugation is used to separate Cream and milk, because of their difference in density.

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the earth would become to overheated and everything alive on it will eventually die from overheating. plants will eventually die as well, water will evaporate, and it will be nothing but a hot planet without anything living on it.