How does soft water differ from hard water?
Soft water forms abundant lather with soap; hard water does not, because it contains compounds of calcium or magnesium. Rain water caught off a clean roof is soft, being almost entirely free from...
View ArticleDead Sea salinity keeps on rising instead of decreasing. Why?
Question: The 1,040 square kilometers Dead Sea (map, below) located between Israel and Jordan is famous for its highly saline waters. The oceanic waters are 3% to 4% saline while the salinity of the...
View ArticleWhat does Baikal Lake hold a world record for?
Question: The Baikal Lake in Russia also holds a significant position in the list of natural wonders of the world. In all 336 rivers and streams flow into the Baikal Lake, while only the Angara River...
View ArticleHow many oceans are there?
This is like the tricky questions you got in high school. In a sense, there are two answers, both of them right. Strictly speaking, there is only one ocean, the great body of salt water, which...
View Article
