Question

What has caused freshwater to be such a problem in Australia? a series of droughts improper garbage disposal chemical dumping by companies improper farming techniques

Answer 1

What has caused freshwater to be such a problem in Australia?

A series of prolonged droughts have caused major problems.

Answer 2

The answer to the question above is "improper farming techniques' which is the cause of the freshwater problem in Australia based. Australia uses most of its fresh water for its agricultural activity which is the major source of its economy. A shortage problem would likely happen from this activity.