Life is based on living and non living organisam and this element are interconnected with nature and Nature created hydrological cycle and provide to all living organisam who are survive on earth and all living organisam are survived based on good environment provided by nature. 

Environment cycle is based on four different principles like 1) Earth, 2) Air, 3) light, 4) water, etc this are the basic elements needed to every living organisam that are survive on earth. 

Every year on 5th June All over the world celebrated world Environment day to protect Environment ,  there are different things to do so protect environment like Planting trees is one of the example to clean air and avoid oxygen difficiancy in the air and there are very different advantage by planting trees like remove dust from the road. 

Air pollution is another principle and problem that associated in our day to day life due to increase in traffic based on fuel moving vehicle and large coal based industry pollution is increases day by day and polluted environment and impact on human being and living species causes to different disease like cancer etc. It's our responsibility to every human being to remediate by adopting non-fule based motor like electric based vehicle and promoting awareness in people to slow down the rate of air pollution. 

The major principle is that “Water Pollution” Due to huge use of plastic in daily routine it's huge burden of disposes and that's why major quantity of plastic are sprayed through in major water bodies and water gets contaminated and polluted environment and this impact on species that live in water and they are direct impact on human being by means of food cycle and this can be stopped by reducing the use of plastic in daily activities avid spread of pollution in environment. If water is contaminated then spread different types of diseases in human being and other living species and distrub the whole hydrological cycle and may create a unhygienic environment Suronding the nature . 

This three principle are interconnected with fourth one that is light. Light means “Sun” i.e one of the example of renewable energy source that shining the sky and give a daylight and other energy that we used in our daily life like solar panels, solar pump, solar heater and etc that store solar energy and gives output whenever we required.