Data-based activity - 4.4 - Water quality
This data-based activity asks you to consider data on the water quality of a (hypothetical) lake in Switzerland. You can find the answers here: Data-based activity - Topic 4 - Water quality - Answers . Background A (hypothetical) freshwater lake in Switzerland is located downstream from an area that has seen a significant intensification of agriculture over the past 30 years. Concerns were raised about the impact of...