yoyobear1988
An endangered species is a group of animals 进入查看：2022-2023学年英语周报七年级第14期答案汇总 以下内容仅作展示，图片上方文字进入查看。 An endangered species is a group of animals that could soon become extinct.Many species are nearly extinct and could disappear off the face of the earth very soon if we don’t do anything to save them. There are many reasons why species become endangered. Habitat destruction is the main reason why animals become endangered and this happens in two ways. When humans move into a new area, the animals’ habitat is destroyed and there is nowhere for them to live and nothing to eat because humans chop down trees and build houses and farms. Chemicals in rivers and poisons on farms cause the destruction of animals’ homes and food supplies. Animals have been brought to the edge of extinction because they are killed for their highly-valued meat, fur, bones or skin, or just for sport. Overfishing has resulted in many large sea creatures like whales and sharks becoming endangered species. We should take care not to pollute natural areas, and farmers or companies who destroy animal habitats should face severe financial penalties. The public can help out by refusing to buy any products made from these animals’ body parts. Governments can help, too, by making it against the law to hunt, fish or trade in endangered species. They can also provide funding for animal sanctuaries, to protect animals from extinction by breeding more endangered animals, which they later release into the wild.
stella59444
Solutions don’t come easily, but they are key 进入查看：2022-2023学年英语周报七年级第37期答案汇总 以下内容仅作展示，图片上方文字进入查看。 Solutions don’t come easily, but they are key to a livable future. While it’s too late to avoid the impacts of climate change, we can avoid the worst of those impacts by investing more in such nature-based water solutions.When a chunk of ice fell from a collapsing glacier(冰川)on the Swiss Alps’ Mount Eiger in 2017, part of the long deep sound it produced was too low for human ears to detect. But these vibrations held a key to calculating the ice avalanche’s(崩塌)critical characteristics. Low-frequency sound waves called infrasound that travel great distances through the atmosphere are already used to monitor active volcanoes from afar. Now some researchers in this field have switched focus from fire to ice: dangerous blocks snapping off glaciers. Previous work has analyzed infrasound from snow avalanches but never ice, says Boise State University geophysicist Jeffrey Johnson. “This was different,” Johnson says. “A signature of a new material has been detected with infrasound.” Usually glaciers move far too slowly to generate an infrasound signal, which researchers pick up using detectors that track slight changes in air pressure. But a collapse—a sudden, rapid breaking of ice from the glacier’s main body—is a prolific infrasound producer. Glacial collapses drive ice avalanches, which pose an increasing threat to people in mountainous regions as rising temperatures weaken large fields of ice. A glacier “can become detached from the ground due to melting, causing bigger break— offs,” says University of Florence geologist Emanuele Marchetti, lead author of the new study. As the threat grows, scientists seek new ways to monitor and detect such collapses.
