How did kepler work improve on or support copernicus's heliocentric theory?

Kepler was an assistant to Tycho Brane, Brane had given Kepler the planet Mars to study, where he found out that the orbit of the planets around the sun wasn't just a plain circle, instead, where ellipses. 

This being said, Kepler's work supports Copernicus because when Copernicus was working on the solar system, he simplified Ptolemy's version by putting the sun near the center, and then Kepler said that the planet orbits were elliptical. 

(Basically, Kepler's idea was based on CopernicusI think)

hope this helps :)

Towns and small farms are usually for land, lakes, rivers, and seas.they also produce other food, like crops.it's also where animals are, where we get our meat.large plantations normally have forests, where crops are grown for sale. (similar to farms)plantations have larger fields of crops.our wine, sugar canes, and fruits come from plantations.