Some have the opinion that the extinction of certain species of plants and animals is the main environmental problem of our time.While others are of an option that there are more significant environmental problems besides this.In this ,essay we will discuss both options in detail. On the one hand , issues like wiping out certain species of plants and animals can disrupt the whole food chain.This can cause some cascading effects and the result like increase in pollution of other species or wiping out of some species.Which can be either good or bad.An example of such extension is of dinosaurs lead to the emergence of humans.So the effect on the environmental by this problem cannot be certain.These issues can be threat to creatin species of plants and animals but not all ecosystems. But on the other hand, issues like global warming , air pollution etc. are treath so entire ecosystem. This issue if not handled can extend all the life of the planet. Issues like global warming...