If the ice caps of many mountains ____ ____, people ____ ____ so worried about the environment. If there ____ ____ no acid rain in this area, the natural park ____ ____ so much. She ____ ____ the job of an environmentalist if she ____ ____ in her parents' footsteps. If the situations with greenhouse gases ____ ____, scientists ____ ____ talking about greenhouse effect. If the emissions of carbon dioxide into the atmosphere ____ ____, global warming ____ ____ dramatic. Several islands ____ ____ if the sea level ____ ____. If they ____ ____ the deforestation of the area, the biodiversity ____ ____. If poachers ____ ____ rhinos in Indonesia so aggressively, these animals ____ ____ so rare.

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