Question

At one time in the Earth’s history, many people thought the world was flat. Which best explains why the model of the Earth is now round?

Answer 1

Models are limited by science - the more that was discovered, the better the model could be made.

Step-by-step explanation:

Models in science are meant to represent things in science. Since science controls the reliability of a model, when science changes, so does the model. Otherwise the model would be pseudoscientific.