world without trees
Trees are the basis of all life. ... To live we require oxygen, and to have oxygen we require trees. This is why we would not survive without oxygen-producing trees. Cities are the most densely populated places in the world, and where there are a lot of people; there are a lot of cars. If there were no trees in these cities, the carbon dioxide produced from the cars would not be taken and turned in the oxygen. ... Daily life would also be greatly affected if there were no trees.