Pollution may be caused by natural sources or human activities, but regardless of the cause, the result is the same. It can have detrimental effects on aquatic ecosystems as well as the health of those who depend on those sources of water, like us!
review verb (THINK AGAIN) C1 [ T ] to think or talk about something again, in order to make changes to it or to make a decision about it: The committee is reviewing the current arrangement/situation. Let's review what has happened so far.
The definition of a critic is someone who evaluates or makes judgments on people or things, or a person whose job it is to evaluate and write about what they experience, especially art, literature and food. An example of a critic is someone who reviews movies. critic. critic.