Earth Lakes Are Under Threat Reading Answers Exclusive |best| -

"Lakes respond non-linearly to stressors. A small increase in temperature can trigger methane release from sediments, which accelerates warming further. This positive feedback loop means that many lakes are approaching tipping points beyond which recovery is impossible."

While water diversion and pollution are direct threats, the passage highlights an even more pervasive, insidious danger: climate change. The text states a sobering fact: on average, the surface water of the world's lakes has increased in temperature by 0.34°C every ten years since 1985. This may seem like a small number, but for fragile aquatic ecosystems, it is a death sentence.

Strategies for the IELTS 2 - Test 6 - R - Khóa học sinh viên Drive earth lakes are under threat reading answers exclusive

Lakes hold about 87% of the Earth's liquid surface freshwater. However, recent data from satellite imagery and ground sensors indicate that more than 50% of the world’s largest lakes are losing water. This decline isn't just about volume; it’s about the health of the ecosystems that billions of people depend on for drinking water, agriculture, and sanitation. Primary Threats to Freshwater Systems 1. Climate Change and Evaporation

Reading Passage 1: Earth's lakes are under threat - FlexiQuiz "Lakes respond non-linearly to stressors

based on the text.

(Note: The exact order of questions can vary depending on the specific test version or book you are using, but the answers below cover the standard question set for this passage.) The text states a sobering fact: on average,

for better comprehension.

The consequences of drying lakes extend far beyond the loss of water volume. As water levels recede, the concentration of dissolved salts, agricultural fertilizers, and industrial pollutants skyrockets. This process, known as eutrophication, triggers massive algal blooms that deplete dissolved oxygen levels, resulting in catastrophic fish kills and the collapse of local aquatic food webs. Moreover, exposed lakebeds dry up into fine dust. When whipped up by winds, these toxic dust storms cause severe respiratory illnesses in nearby human populations and contaminate adjacent agricultural land. Paragraph E

It covered about 1,000 square kilometers in the dry season (down from a much higher average in wetter years).