environmental Issues Affect Our

      In our life, more and more environmental issues affect the earth. Human activities destroy and pollute the envoronment, such as increasingly warm gases, climate changes, water melt, the rises of sea level, El Nino phenomenon and so on.Human development causes the emission of warm gases to overload, resulting in a series of climate changes issues.My tree in the nature is very small, but my tree in the ecosystem is very important. Because it can absorb acid rain, keep the soil in the place.So environmental Issues is becoming our the first problem.  

Urban Sprawl

     With increasing population, human gradually expand their living areas. The urban sprawl destroys forests and causes grasslands desertification. Trees are the only green things. They can purify airs. Without urban sprawl, maybe our trees should grow up in the forest. The increasing people pollute the airs. The increasing emission of green gases makes the plants in the urban more and more precious. Firstly, green plants can absorb noise. Secondly, green plants can absorb dust. Eventually, they can emit oxygen. Thus, urban needs more and more green plants. Protecting nature is to protect human ourselves. We should protect environment and cherish life.

Biochemistry in Environment

       In our living environment, biochemistry is particularly important. Because, all of things is made of chemical elements which is including  animal  plant and microbe. They need nutrition, water and inorganic salts. My tree can through photosynthesis to get nutrition, this call autotrophs.So,my tree is the lowest level in the nature. My trees can release oxygen into air, and some animal can eat the plant. Life-sustaining materials in gaseous, liquid, and solid forms are cycled through the biosphere, providing sustenance to all living organisms. Biochemistry influence the environment. 

Water is the source of life.

     In our life, water is the most important life source. But, with expansion of population and cities, a large number of forests have been cut and global climate is becoming warmer than it was hundreds of years ago. This consequence mainly comes from the role of water on ecosystem. Firstly, water is recycled in the earth. Water is chiefly evaporated from the ocean, condensed in the atmosphere. Then, it forms the rain cloud, becomes precipitation and returns to the ground. This process goes round and round. The pollutants from Human consumption and production enter into water cycle in many ways, which results in increasingly worse water mass and affects people’s health. With the number of people increasing, water that can be drunk in the nature is not far from solving human needs. Therefore, the source of water is increasingly precious. Secondly, water is the base of ecosystem. Whatever animals and plants, they all need water. Plants make use of water to carry on photosynthesis and respiration. My tree that is like them carries on these two actions to grow up every day. What’s more, animal respiration needs water. Thus, water is the foundation of everything to protect the nature.

The Super Bowl

      When I  pass through my tree, I remind that the Super Bowl match will be coming. My tree's fruits look like olive, so I like this tree so much.  Olive symbolizes peace. Both the Olympics games and  Super Bowl express the desires that people love peace .The footbal match is one of the American traditional sports, I come from China, thus, I don't know more about Super Bowl. However, I remembered that my American friend  told me a story about football game.

      When he was a child, he heard of a reader titled “Look and see, Dick and Jane”. In the beginning, he did not discern the deep meaning of these words. Later, he knew more about these from an article that helps us to “look” at Oakland Raiders' Dave Dalby and to “see” his three important Super Bowl rings. The article is about Dave Dalby’s splendid life in the field of football game and miraculous events preceding Dalby’s death.

      Dalby played 14 years in the NFL, replacing great Jim Otto, a player who made his mark in NFL history, as an offensive lineman. Dalby also played an essential role in making the Oakland Raiders a powerful team during its era in Los Angeles, California. He did not only make his team more powerful, but also inspire a young girl who wrote him just a few days before he died in his fatal accident.