Scientists categorize the destruction of global lakes into three primary drivers: climate change, human consumption, and sedimentation. Rising global temperatures increase evaporation rates from open water surfaces. In natural lakes, temperature hikes combined with shifting precipitation patterns account for most of the volume loss. For instance, iconic water bodies like the Caspian Sea and Lake Titicaca have hit historically low levels due to hotter ambient temperatures and reduced mountain runoff. Paragraph C: The Human Footprint
Below are the official answers for the comprehension questions based on the text above. Section 1: Matching Paragraph Headings
: iii (Technological solutions and satellite monitoring) Paragraph F : vi (A call for unified international policy) Part 2: True, False, Not Given earth lakes are under threat reading answers exclusive
Paragraph D notes that exposed lakebeds turn to dust, creating "dust storms" that cause respiratory illnesses.
: The gradual process of a region becoming increasingly dry and desert-like. Scientists categorize the destruction of global lakes into
Check your practice passage against these themes—the "exclusive" key is often found in understanding the relationship between human activity and the delicate thermal balance of the water.
All lakes in humid regions are gaining water due to increased tropical rainfall. Answer: FALSE For instance, iconic water bodies like the Caspian
For some lakes, the biggest threat is from climate change. On average, the surface water of the world's lakes has gone up in temperature by 0.34°C every ten years since 1985. Lake Tanganyika in East Africa is a lake where this trend has been observed, although it is by no means the most extreme example. This would be Lake Fracksjon in Sweden, where an increase of 1.35°C per decade has been observed – a figure which is estimated to rise. For Lake Tanganyika, however, the consequences have been severe. Warming has disrupted its ecosystem, and fish numbers have dropped sharply. In turn, this decline in fish stocks has impacted on families living in villages and towns around the lake, since they have no other source of protein. Furthermore, around 100,000 people depend on the fisheries established around Lake Tanganyika. These companies provide them with regular employment, without which communities will not survive.
Transitioning to drip irrigation and drought-resistant crops reduces the volume of water extracted from tributary rivers.
“The passage explains that (6) are worsened by agricultural runoff containing (7) phosphorus and nitrogen. In the Great Lakes, (8) quagga mussels have accelerated ecosystem changes. To combat these threats, some regions have introduced (9) ballast water regulations for ships.”