❓ why
Why do some lakes disappear over time?
Quick Answer
Lakes can shrink or vanish when they fill with sediment, lose more water than they gain, or drain through underground passages.
The Full Story
A lake is not permanent unless its basin keeps being replenished. Sediment from rivers, wind, and landslides can gradually fill the hollow that holds the lake. Climate change, drought, evaporation, or human water use can also reduce the water supply. In karst regions, the lake may drain into caves or underground channels. Many ancient lake beds on Earth are now dry basins because the balance changed.
Key Facts
1.Sediment can fill a lake basin
2.Evaporation can exceed inflow in dry climates
3.Underground drainage is common in karst regions
YouTube Angle
Suggested video title for this topic:
"Where did the lake go? The science of disappearing water"
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