What is the process of rainwater percolating through disused or active mine waste called?

What is the measure of the amount of dissolved oxygen used to breakdown the organic material in a given volume of water through aerobic activity?

What is used to measure water transparency?

What can be used to monitor pollution in marine waters due to its ability to bioaccumulate pollutants?

What is a major source of hot water that can elevate the local water temperature?

What can be affected by plastic waste in aquatic ecosystems?

What is a potential hazard to human and wildlife health if found in inland and coastal waters?

What is used to determine the amount of oxygen levels present in the water sample?

What causes eutrophication?