Water in New Zealand

What is sustainability?
Sustainability is the looking of the resources.This could be related to water,fossil fuels and oil. But not all resources can last for ever.These are called non reusable. As of this most natural resources are part of key survival to humans and will be the big part of human survival. With the likes of global warming.
What is the current state of water quality in New Zealand?
Water is not just found to just be polluted,it is the creations of many factors.These facter can be located to the close reagens of a river or lake.These could be cow farming,tree leaves or the use of dirt and rocks coming from under the earth or high peak flowing mountain.As of the natural landscape of New Zealand most rivers and lake come from the mountain ranges of New Zealand. Most of these are fresh and some of these rivers are salt. Most state of waters in the Canterbury region are dairy famed,as of this the cows business have been pumped into