Cultural regions can be very diverse due to which of the following reasons? i. geographers can create regions that focus on one or more cultural elements. ii. the size of the regions are always the same no matter what cultural element is being examined. iii. regions are often fluid because they can change, new ones can be created, and some can disappear. a. i. and ii. b. i. and iii. c. ii. and iii. d. i., ii., and iii.

i. and iii. Geographers can create regions that focus on one or more cultural elements and Regions are often fluid because they can change, new ones can be created, and some can disappear.

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

australian plates collided into eurasian plates, and the himalayas formed. the andes mountain range the himalayas and the islands of japan form differently. the andes mountain range formed at the convergent boundary of an oceanic plate and continental plate.