Planting trees has a positive impact on an ecosystem, and destruction of Trees is taking place, pollution of air is the Result of cutting trees with pace. Given these facts, what has a positive effect on an ecosystem among the following options:
- maintaining air pollution
 - removing habitats
 - stopping air pollution
 - to stay warm
 - in the frog family
 - Electric generators
 - increasing air pollution
 - genetic diversity


 

   stopping air pollution      