❓ why
Why do some lakes become very salty instead of fresh?
Quick Answer
A lake becomes salty when water flows in but has no outlet, so dissolved minerals build up as water evaporates.
The Full Story
Closed-basin lakes, also called endorheic lakes, have no river outlet to carry dissolved salts away. Rivers and rain bring minerals into the lake, but evaporation removes only the water. Over time, the salts and other dissolved materials become concentrated. This is why lakes in dry climates can be much saltier than the oceans. Well-known examples include the Dead Sea and Utah’s Great Salt Lake.
Key Facts
1.Closed basins trap dissolved minerals
2.Evaporation concentrates salts
3.The Great Salt Lake is saline, not fresh
YouTube Angle
Suggested video title for this topic:
"Why some lakes turn into giant salt traps"
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