Trees in Danger

Millions of years before animals lived on land; there were trees on the Earth. But today trees are in serious danger. Everybody knows that trees produce oxygen that we breathe and take carbon dioxide that we exhale that is why trees called the lungs of our world. As man cannot live without lungs, so and world cannot exist without trees. Factories, power stations and cars emit tons of smoke into the air. This smoke contains sulphur dioxide and nitrogen oxide. These substances mix with water vapor in the atmosphere and form sulphuric acid and nitric acid. Sunlight turns these acids into poisonous oxidants which fall in rain or snow onto the trees. This smoke damage not only trees, it also damage our lives and our planet. Trees are cut down faster than the government's program for restoring the forest work. Why don't governments do something to save the trees? Unfortunately, acid rain doesn't always fall on the countries which produce the pollution. The wind carries the poisonous substances from one country to another. I think that government should pay more attention to this problem.Planting more trees is only part of the solution because trees are not only cut down, also they burned because of the human negligence. All the famous trees are in danger from pesticides and fertilizers that degrade the surrounding environment, pollution from growing airports or roads and even human activity eroding land around the tree. There are individual and collections of very significant trees that are in danger, mostly through agricultural practices but also pollution, insidious development and in the long term climate change. All old trees across all worlds are being chopped down to make way for houses and roads. In other parts of the world trees are threatened by people, not by pollution. The great rain forest of Asia and South America are being destroyed for firewood and building material. Something must be done. Trees are important because they provide a home for