Part 2. Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the best answer to each of the following questions from 25 to 29.
1.
What is an ecosystem?
An ecosystem is an area where living things, such as plants and animals, as well as non-living things, like weather and landscapes, work together to provide suitable living conditions. As living and non-living things depend on one another, any change to a member of the ecosystem may lead to changes to other elements. This also means that damage to one part of the ecosystem will lead to serious consequences for other parts.
While large national parks or nature reserves often come to mind when people think of an ecosystem, an ecosystem (and even ecosystems) could be found in very small areas, such as a garden or a pond. In a pond, for instance, animals such as frogs and fish live together with water plants, and depend on each other as well as on the water, humidity, and temperature to survive and grow. Large areas where different ecosystems can be found are called biomes. Examples of biomes include oceans, rainforests, and deserts.
Since our appearance on Earth, we have interacted with as well as depended on different ecosystems. However, we have also taken over many ecosystems and destroyed many of them. For example, many of the Amazon rainforests have been cut down, leading to loss of balance in the ecosystem. As we are part of the ecosystem, we also suffer from the damage we are causing to it. For instance, … (234 words)
(Adapted from Global Success Tieng Anh 11 - Workbook)
