Both watershed and drainage basin
Miller Urey experiment mimics the environment we had for earth billion of years ago. They put in inorganic molecules and came out with organic molecules. Other scientist thought that they messed up their experiment, but once other scientists recreated and tested. They saw that Miller and Urey were correct. And that helped them see that the origin of life can come from simple cells.
If your hypothesis is supported then good job! you made a good hypothesis. next you should collect your results and put them into a table to share
