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  3. Many parts of the world are losing important natural resources，such as forests，a

Many parts of the world are losing important natural resources，such as forests，a

游客2024-01-02  34
问题 Many parts of the world are losing important natural resources，such as forests，animals，or clean water. Choose one resource that is disappearing and explain why it needs to be saved. Use specific reasons and examples to support your opinion.
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答案                                                 What natural resource that is disappearing needs to he saved?
    The world’s resources are incredibly important, and as the world’s population grows higher and faster, it is difficult to hold on to these precious assets. While all resources have their own important uses, I believe that forests are the resource that we should be most concerned about preserving.
    Trees provide three important functions in the ecosystem. First, they transpire water into the air, creating clouds, and therefore, rain. Without trees, this cycle is interrupted, and rainfall is drastically reduced to minimal levels. Second, trees hold topsoil in place and soften the impact of water on the ground. This is of utmost importance in rain forests, where decomposition is rapid and because of this, the layer of topsoil might only be five to ten centimeters deep.
    Finally, trees are important to the ecosystem because they protect streams from debris and silt. If the trees were all removed, there would be nothing holding back this dirt from our rivers, destroying the aquatic environment.
    Trees also, of course, provide natural beauty to a country. This is very important for tourism, as many visitors enjoy going on long hikes through wooded areas, and taking in the beautiful scenery. If a country has no natural beauty there will be little draw for tourists to come and visit. While cities can be exciting, most people are drawn to these natural jewels.
    Forested areas are also the main habitat for a plethora of animal species. In fact, most of the extinction and endangerment of animals today can be attributed to habitat destruction. If we continue our trend in deforesting the world, we will soon find ourselves living in a barren wasteland, with no wildlife to keep us company. The effects of the extinction of even one species of animal is yet unknown. Breaking the food chain on even one level might have profound ripples through all life on Earth.
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