Which of the following statements about australia is not true?
a. australia is the world's flattest continent.
b. dozens of powerful rivers cross the continent.
c. a dry plateau is located west of the great dividing range.
d. the area southeast of the great dividing range has a moist climate.

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.

The answer is d if you are on edgenuity. 

Answer the collision of tectonic plates;