Greenery is the most significant part in our life. We need fresh oxygen to breath and that can be done with the help of trees, plants and grass at every place. the maintainance of the greenery is important part than planting them. With a fresh and green environment We can live a healthy life. So it is a duty of every person to plant more trees near their houses and breath fresh oxygen day and night.
You can also get powerpoint templates on trees to make powerpoint presentation on greenery, healthy living, planting trees etc.