People began to think of having a managed space in their yards in about the 16th century. Back then, people who were wealthy grew cultivated grass lawns or else they had areas filled with chamomile or thyme. Lawns and trees not only beautify our surroundings, but the greenery from live plants and trees also produces oxygen. One acre of trees can make enough oxygen for a year for about 18 people. Actually, about 260 pounds of oxygen is produced every year by just one tree. Not only that, but the roots of a tree stabilizes soil and prevents erosion. Having…