What is an astronomical unit a) a measurement of the length for the universe b) the measurement from mars to the sun c) a measurement for the diameter of the sun d) the measurement of the milky way galaxy

The correct answer is E) none of the above.

An astronomical unit (AU) is the measurement of the distance from the centre of the Earth to the centre of the Sun.

You could express any of the above measurements in astronomical units.

it is the most commonly accepted one

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .