Our ____ is very beautiful. There are a lot of ____ seas and mighty rivers, ____ mountains and great forests, white plains and green valleys. We think that whatever we do, the Earth will ____ the same. But we are wrong. The world is too ____. Here are significant current environmental issues: 1) Pollution. Air pollution is ____ everyone on the Earth. Factories contribute greatly to air pollution. Water pollution also ____ our planet. Industrial ____ from factories is one of the causes of the water pollution. 2) Global ____ is another environmental issue. During past decades, the accumulation of ____ gases has grown significantly. Global warming leads to climate ____, droughts, diseases and ____ in hurricanes frequency. 3) Deforestation is also a serious ____ problem. Deforestation is when forests are ____ and not replanted. People clear forests to make farms, build houses and roads. The ____ of deforestation can be devastating. They may cause ____ and global warming. Some animals and plants in our world are very common. Other ____ are very rare. These species are ____. Pollution, climate changes, ____ rain, deforestation are the ____ why most animals and plants have become endangered.

Global problems

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