Answer:
Water should be the answer.
Astronomer Edwin Hubble classified galaxies<span> into four major types: spiral, barred spiral, elliptical and irregular. Most of the nearby, bright </span>galaxies<span> are spirals, barred spirals or ellipticals. Spiral </span>galaxies<span> have a bulge at the center and a flattened disk containing spiral arms.</span>
Answer: As water is cooled, its density increases until it reaches about 4˚ Celsius.
hope this helps you :D
i apologize if i got it wrong
