CFCs and the Ozone LayerBerkeley Electronic Press Selected WorksJ M StarlingJudy A Raper
are getting ready to make a comeback in the late21st century, in a process accelerated by climate change, researchers say.The Montreal Protocol banned the use of CFCs worldwide in 1987, after researchers discovered that CFCs had damaged the ozone layer that protects life on Earth from harmful...
after researchers discovered that CFCs had damaged the ozone layer that protects life on Earth from harmful radiation. And the Montreal Protocol has mostly worked-CFC levels in the atmosphere have dropped sharply in recent decades, and the ozone layer has begun to repair itself, as Live Science ...
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But if we use the heat from the sun, we don’t have to burn anything, and there’s no pollution.Solar energy is not all there yet. It needs to be improved. But the best thing about it is that, unlike coal and gas, it doesn’t run out. Solar Impulse could keep flying forever....
The ozone layer protect us from ultraviolet rays from the sun, and now there is a hole in the ozone layer, caused by like cfcs such chemicals, CFCs, it is usually used in the fridge. To this end, more people are suffering from skin cancer ...
- **C. damage**:指“造成损害”,强调部分破坏而非完全毁灭。科学语境中常用于描述环境破坏(如damage the ozone layer),准确匹配CFCs导致臭氧层损耗的现象。 - **D. hit**:指物理上的“打击”或“击中”,不适用于CFCs的化学性长期破坏过程。 综上,**damage**为最符合科学表达及语境的选择。
damagedC. destroyedD. threatened 4 If we use fewer chemicals called CFCs, the ozone layer will be ___. A. protected B. damaged C. destroyed D. threatened 5【题目】If we use fewer chemicals called CFCs, theozone layer will beA. protected B. damagedC. destroyed D. threatened 反馈 收...
levels in the atmosphere have dropped sharply in recent decades, and the ozone layer has begun to repair itself, as Live Science reported. But all those CFCs already released into the atmosphere had to go somewhere. And for many of those molecules (分子), that somewhere was the world’s ...
1987 年 9 月 16 日再於加拿大蒙特婁市舉行國際會議,並由全世界二十六個國家共同簽署「蒙 特婁破壞臭氧層物質管制議定書(Montreal Protocol on Substances that Depletethe Ozone Layer)」﹐管制氟氯碳化物使用 之國際公約,也於 1989 年 1 月起正式生效。而後,為挽救日益惡化之臭氧層,於 1990 年 6 月在倫敦...