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Earth is one of the planets in the solar system and it is the most suitable planet for all living things to live. The formation of life on Earth is quite miracle because it takes billion years for the process of formation of life. Earth is very beautiful planet because it is filled with different colors. Each of the living things on Earth is very unique and they are depending on each other for living. The chain of ecosystem is perfect until the present of human being. Everything on Earth changes such as pollution, natural disaster, and extinction of other kind of living things.

Why does it happen? According to my opinion, there are several factors that causes this happens such as power, attitude, desired and the present of science. Human beings are always fighting for power. The only way to make the country become stronger is development. Development will make their country become rich. Energy plays a very important role on the development. This is why human dig into the Earth to get the oil. The high demand of oil around the world cause more land to be exploited for extraction of oil.

Rapid country development causes the growth of human population become faster and faster. The demand of food becomes higher. More land is exploited for food agriculture. At the same time, they did not realize that massive development will bring negative impact on the environment. Human is the cleverest living thing on the Earth. Although the physical strength of human is weaker than other living kinds but the brilliant of the brain bring human kind out of natural enemy. Growth of technology and science contributes a lot in health sector and it brings human population increase rapidly.

Water and food are the basic resources for all living things to survive. Due to serious pollution and other serious problems, shortage of food and clean water become very common today. If this matter continues to go on, world war might happen in the future,...