Europeans studied works of and to learn geography of the known world. a. henry the navigator, columbus c. de gama, dias b. ptolemy, al-idrisi d. cabot, cartier select the best answer from the choices provided a b c d

Europeans studied works of Ptolemy and Al-Idrisi to learn geography of the known world. So the answer is B) Ptolemy, al-Idrisi.

Hope this helps :).

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.