UNESCO’s list, other factors can still put it at risk of being damaged. The environment, climate change... in the ozone layer (臭氧层). These rays affect the coral (珊瑚) there and kill off smaller ecosystems ……

UNESCO’s list, other factors can still put it at risk of being damaged. The environment, climate change... in the ozone layer (臭氧层). These rays affect the coral (珊瑚) there and kill off smaller ecosystems ……

and hunting. This rate of loss is putting ecosystems (生态系统) at great risk, according to the United....habitat n. (动植物的)产地，栖息地The North Pole is the habitat of the polar bear.risk vt./n. 冒险；危险，风险He took ……

's water supplies and the UN's goals regarding water.SupplyFreshwater ecosystems cover less than 1 per... already.In addition to fish, the WWF says that four of the five species of river dolphin are at risk ……

the ocean habitats and the ecosystems that rebuild the stocks.Government subsidies, sonar, satellites... that US men were more likely than women to be involved in 30 different high-risk behaviours.Samsung ……

us.Over the course of millennia (千年), humanity has made an impact on ecosystems for better or worse... human life and ecosystems.Each time we pick up a newspaper or turn on the radio, we read or hear ……

us.Over the course of millennia (千年), humanity has made an impact on ecosystems for better or worse... human life and ecosystems.Each time we pick up a newspaper or turn on the radio, we read or hear ……

, unexpectedly, that most reef ecosystems were already degraded before 1900 and the existence of modern... demonstrate that coral reef ecosystems will not survive for more than a few decades unless ……

CHICAGO: Eating a handful of nuts twice or more weekly may cut the risk of deadly heart disease, according to a study whose results were released on Sunday. ……

log onto www.pbskidsgo.org/lifeboat. It’s your chance to help rebuild the ecosystems on the lifeboat ……

onto www.pbskidsgo.org/lifeboat. It’s your chance to help rebuild the on-board ecosystems in time ……

LONDON - Apart from shattered nerves and interrupted sleep, living under or near a flight path could also cause high blood pressure and increase the risk of heart disease, researchers said last week. ……

NEW YORK — Exercising two or more times per week may reduce middle-aged men's risk of developing many different types of cancer, according to British researchers. ……

LONDON — There is a one in 20 chance of a dramatic rise in world sea levels over the next century due to global warming, according to a new risk assessment published on December 28. ……

.Over the course ofmillennia(千年), humanity has made an impact on ecosystems for better or worse... human life and ecosystems.Each time we pick up a newspaper or turn on the radio, we read or hear ……