Who came up with the geocentric model of the solar system?

Ptolemaic system, also called geocentric system or geocentric model, mathematical model of the universe formulated by the Alexandrian astronomer and mathematician Ptolemy about 150 CE and recorded by him in his Almagest and Planetary Hypotheses.

Yes.

The kidney is the part of the internal organ that help in the production of urine. And a normal urine should be yellowish in color.

Therefore, in a situation whereby the urine is seen to contain some red tiny droplets, specifically means the presence of an infection to the kidney.

In this case, a cloudy urine might mean the presence of white blood cell which stipulates the presence of infection.