Ecology is the study of environmental systems. In common parlance, it is also known as the economy of nature. Ecology is more than just random ideas and morals that one learns in a classroom or a book but a better way of looking at the world. It lays emphasis on understanding of how every natural component including plants, animals, humans, air, water, soil etc fit together and interact with each other. Ecology studies how each element influences and is influenced by the other elements. We understand ecology better now due to the widespread public awareness on environmental issues as compared to three decades ago when industrial pollution and deforestation were thriving and yet unknown to the masses. Times have changed and ecology and its preservation have become vitally important. While ecology deals with every element found in nature, one of the biggest contributors towards the sustenance of this planet are the plants. Plants evolved from millions of years of evolutionary cycles. The first plants on Earth were a form of algae, blue -green in colour, which lived in the oceans around 3.4 billion years ago. Then came land plants and the trees another few 100 million years later. Trees became essential to the planet as more trees meant more oxygen levels thus reducing levels of dangerous greenhouse gas, carbon dioxide (CO2). More oxygen meant animals could thrive thus paving the way for the evolution of the animals. Thousands of trees evolved and become extinct in a natural process. Fast forward to the 21st century, many trees are now threatened by deforestation and farming. Trees and plants are essential to Earth as all life on the planet depends on their survival. The green rainforests are the lungs of the world providing oxygen and keeping the balance in the atmosphere. They take in carbon dioxide (CO2) and release oxygen that is utilised by every living being on this planet.