You come across a bear which is brown in color, has flat shoulders, and has large ears. What kind of bear is it?

It is probably a black bear. Black bears can have many different colors, including brown. But compared to brown bears, they have flat shoulders, larger ears, smaller overall size, and a face that is straight from the eyes to the nose. In contrast, brown bears have a prominent shoulder hump, have small ears, have an overall larger size, and have a face that is bowl-shaped from the eyes to the nose.