The answer to the question is true
In this circumstance one should revise the hypothesis and develop a new experiment to test it.An example could be the theory of Agraham Gottloeb Werner that all rocks were precipitated from water including not just sedimentary rocks but also volcanic, plutonic and metamorphic rocks. The more the earth was studied, especially by James Hutton in Scotland, the more it became obvious that granites for example were deposited in a molten state, thus disproving that hypothesis or theory.
~Hello there!
Your question: The core of a city, which is primarily based on commercial activity, is called the ____________.
Your answer: The core of a city, which is primarily based on commercial activity, is called the central business district.
Hope this helps! :3