Answer:
improper disposal of sewage
The answer is d x10 magnification
Ptolemy's model was Geocentric. This means that it put the earth at the center of the solar system, instead of the sun, with all celestial objects orbiting it. The first person to prove the validity of the heliocentric theory was Nicolaus Copernicus.
Ammonia (NH3) is inorganic and would be the answer to your question
True i believe because the dna is it’s taits