. The heating ocean water has been killing corals (珊瑚) through a process called “bleaching (漂白... to climate change. The heating ocean water has been killing corals (珊瑚) through a process called ……

C, the remaining water in the corals solidified into a glassy form. The corals were still alive..., the researchers pulled the corals out and placed them in warm water. In two minutes, they started ……

. With a population of 1.3 billion, garbage is a big problem for China. Chinese cities create around 148... (groundwater, air, rain, etc). One problem with landfills is that they take up a lot of land space ……

. There is heavy water pollution. 4. What is the main idea of this story?A. Corals are small creatures. B. There will be only white corals.C. Corals are in danger.D. Global warming is a big problem. Day ……

全世界的珊瑚礁面临死亡危机。Corals are very small creatures (生物) in the sea. They build colorful coral reefs (珊瑚...变暖). It was bad for coral reefs.There is a kind of algae (海藻) living in corals. The algae has many colors ……

五彩的珊瑚礁为什么纷纷失去了颜色并死去？Corals are very small creatures (生物) in the sea. They build colorful coral... was bad for coral reefs.There is a kind of algae (海藻) living in corals. The algae has many colors ……

face another problem brought about by climate change – the return of disease-causing bacteria... that is frozen, most of which can be found in the northern hemisphere.However, as the planet warms, a large ……

to control its water circulation (循环). It brings in water from the ocean next to it at one end and pushes it out at the other. The sun warms the water to 26 C, so people can swim comfortably. ……

University in Queensland, Australia, algae (海藻) is slowly killing the corals (珊瑚) through chemicals... species in the study is a common brown algae found in corals all over the world. But to solve ……

's 669 cities face water shortages. An average of 20 million hectares of farmland are hit by drought every year. Water pollution is another serious problem, with only 38.1 per cent of China's surface ……

.Meet the coral reefs 珊瑚礁群面面观Some 500,000 years ago, young corals grew on skeletons (骨架) of dead corals here. They built up and grew into reefs.Corals are a kind of animal. They grow in warm and clean ……

) this coral reef.Meet the coral reefs珊瑚礁群面面观Some 500,000 years ago, young corals grew on skeletons (骨架) of dead corals here. They built up and grew into reefs.Corals are a kind of animal. They grow ……

place.1. What problem does the Great Barrier Reef face?A. There is less and less coral cover because... too much on cars is also a problem for adults. British people are much lazier these days ……

your parent to put hot water into the cup.3.Put the bottle in the cup.What happens?The bottle blows up (吹起) the balloon!WHY?The hot water warms (加热) the air of the bottle. The hot air rushes into (冲进 ……

years.The bleaching was caused by a large pool of warm water that flowed into the Indian Ocean.... When corals die, their skeletons (骨骼) are left behind, and new corals build on top.Bleaching is one ……