Since this is a common practice test found in many IELTS preparation materials, I have compiled the Reading Answers along with the Location of Answers in the text to help you understand why each answer is correct.
10. Which invasive species in the Great Lakes is mentioned as filtering water excessively?
✅ Answer: Zebra mussels (or quagga mussels – accept either, as both are named)
(Note: The specific word choices for Summary Completion depend entirely on the box of options provided in your specific test booklet. The answers above represent the correct concepts found in the text.) earth lakes are under threat reading answers exclusive
"Earth's Lakes are Under Threat" outlines the rapid decline of global freshwater bodies, driven by climate change, unsustainable agriculture, and industrial pollution impacting sites like Lake Poopó and the Aral Sea. The text identifies key factors such as reduced water levels, biodiversity loss, and economic disruption affecting local communities. For a full analysis and related reading test materials, visit
Topic: Environmental science, Hydrology. Main Idea: The passage discusses the fragile state of the world's lakes, focusing on the Great Lakes, pollution, invasive species, and the impact of human activity. Since this is a common practice test found
To better understand the challenges facing the world's lakes, we spoke with Dr. [Name], a leading expert on lake ecosystems. According to Dr. [Name], "The situation is dire. Many lakes are experiencing unprecedented stress, and the consequences of inaction will be severe. It's essential that we take a comprehensive approach to address the root causes of lake degradation, including climate change, pollution, and over-extraction of water."
"Earth's Lakes are Under Threat" is an IELTS academic reading passage highlighting environmental degradation in major global water bodies, featuring summary completion answers focused on the drying of Lake Poopo and the Aral Sea. The text details how human activity and climate change impact ecosystems and livelihoods, with specific mentions of reduced biodiversity in Lake Tanganyika and bacterial shifts in Lake Urmia. Access a full mock test version at FlexiQuiz. ✅ Answer: Zebra mussels (or quagga mussels –
Posted by [Your Name] | April 22, 2026
Earth's Lakes Are Under Threat: Reading Answers Exclusive