The destruction of Earth's ozone layer, for example, could contribute to the general process of impoverishment by allowing ultra-violet rays to harm plants and animals.
例如，地球臭氧层的破坏会使紫外线伤害植物和动物，从而导致普遍的贫瘠进程。
2
The ozone layer protects life on earth from harmful ultra-violet rays.
臭氧层保护地球上的生命免受有害紫外线的辐射。
3
An important thing is monitoring the size of the hole in the zone layer above Antarctica, since this is an indicator of global ultra-violet radiation levels.