Changing nature of water is due to changing climate , increasing population, pollution, global warming etc.
Water present for drinking purpose is less than 1% and it is degrading day by day because of the increasing population and pollution as the population increases the water keep on decreasing and by polluting water also decreases the running water.
This is one of the major issue which every one has to be worried about.
We've had the same amount of water on our planet since the beginning of time. Even though 70 percent of the globe is covered in water, less than 1 percent is accessible to us.
But now there is 6.7 billion people using that water. We're on track to be up to 8 billion people in 15 years. With our current population, there is already water stress.
Hormones -- such as melatonin and cortisol; the former signals the body to go to bed, while the latter signals for the sleeping person to wake up -- are created by physiological changes.
