Earth is the only habitable planet in our solar system because of the atmosphere and environment that provides ample resources for the existence and development of all living organisms. Our environment is so beautifully and intricately designed that all the living organisms are dependent on each other for their existence and sustenance. Human life is solely dependent on nature for survival , whereas the nature is so interlinked and sustainable that it can survive and thrive without humans. But the sad reality is we people are destroying this life giving environment for the sake of our greed, luxury and development. So, every year on 22nd April, Earth Day is celebrated in order to create awareness and make us remember how precious our environment is. The day helps in creating a global platform for recognising major environmental issues such as global warming, marine pollution, human over-population, protection of wildlife, sustainable consumption, etc, and work towards their prevention.