1) Perth households use an average of 276 kilolitres of water per year, double that of Melbourne and Brisbane. Most of Perth's water comes from underground aquifers near the surface or deeper down.
2) The family tracked their water usage over 3 weeks and implemented an action plan to reduce usage by at least 10% by turning off taps when not in use, taking shorter showers, and using efficient settings on appliances.
3) On average, their daily usage decreased by 9%, just short of their 10% target. The student learned about varying water usage and the importance of clean water access for many people worldwide.