Water in the end is not renewable resources!
Water, what we call fresh water, is becoming less and less. This is mainly due to our lack of awareness of water conservation and recycling of water reuse technology is not developed and popular. When human beings are so indulged, what we call water, that is, the fresh water that is suitable for human use, will become more and more rare, until it disappears. So, nothing is inexhaustible, inexhaustible, but as long as we are aware, in action, through our joint efforts, we will be able to achieve sustainable development, so that mankind continues to thrive, human civilization will continue to develop!
Water and water have different chemical properties, good and stable, but also the most suitable for the biological physical characteristics: the decomposition of water into hydrogen and oxygen, hydrogen and oxygen are then combined into water, this way is simple and stable so that the water in the chemical environment (such as human and nature) cycle. More common is the use of water physical properties, hand washing, etc.. May think the wash water is dirty, can not be reused, but it's just water with something else mixed up in dirty water, water, or water, only to re separation and filtration, it is necessary to rely on human technology.
Yes.The water cycle is the most important part of the whole ecosystem. We say oil resources will run out because we are using his chemical energy, and this energy regeneration is to take quite a long time, human beings can not endure so long time without it it is made of special geological conditions
