Under Threat Reading Answers Exclusive - Earth Lakes Are

Lake Poopo is not the only vast area of water to have disappeared. The Aral Sea in Central Asia was once the world's fourth largest lake but then it began to shrink in the 1960s. As a shallow lake, it depended on rivers to keep its level up. But then water from these rivers was diverted for irrigation purposes. Rice is a crop that needs huge quantities of water to survive in desert areas. Fields planted with cotton also require a regular supply. Now the water level is so low that fishing has stopped altogether. And it is not just the immediate area that is affected. Because the floor of the lake is now exposed, the salt that lies there is often carried by the wind across a radius of 300 kilometres. This impacts on agriculture as it damages growing plants and is absorbed by the soil.

This section details the knock-on effects of drying lakes, including toxic algal blooms, fish kills, and respiratory illnesses caused by toxic dust, matching "secondary environmental and health hazards."

Before we get to the answers, here’s a quick summary of the passage’s content (based on the most common version of this text): earth lakes are under threat reading answers exclusive

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If you are practicing with the passage "Earth’s Lakes Under Threat" from Cambridge IELTS 17, Test 3, here are the verified answers: Lake Poopo is not the only vast area

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Perhaps the most dramatic example of this crisis is the story of Lake Poopo in Bolivia. Once the nation's second-largest lake, Poopo was a vital hub for local communities and migratory birds. The IELTS reading passage opens with this powerful case study, detailing how, for centuries, the lake followed a predictable seasonal pattern: swollen by winter rains to cover around 2,700 square kilometers, only to recede to roughly 1,000 square kilometers during the dry summer months. However, the natural order collapsed. In December 2015, satellite imagery confirmed what locals had feared—the lake was gone. But then water from these rivers was diverted

Drip irrigation technology is currently too expensive for developing nations to implement.