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 23 to 30.
There are thousands of animal species on our planet, each uniquely adapted to its environment. However, in the past century, human activities have caused many animals to become endangered. According to the International Union for Conservation of Nature (IUCN), around 40% of all animal species are now at risk of extinction.
One example is the Sumatran orangutan, which lives in the rainforests of Indonesia. Deforestation has destroyed much of their habitat, leaving them with fewer places to live. Moreover, illegal poaching has further reduced their population. These factors have caused the number of Sumatran orangutans to decrease by 80% over the past 75 years.
Another case is the polar bear, whose survival depends heavily on the existence of sea ice. Due to global warming, the Arctic ice is melting, making it harder for polar bears to find food and build dens for their young. As a result, their population is also in decline.
Efforts are being made to save endangered animals through conservation projects. Wildlife reserves, such as national parks, provide protected environments where animals can live without the threat of human interference. Additionally, laws against poaching and illegal hunting are being strengthened in many countries. Technology, such as GPS tracking devices, is also being used to monitor endangered species and prevent illegal activities.
