What was the percentage of people on earth that lived under freshwater shortage in the beginning of the 20st century, and what was that percentage in the beginning of the 21st century?
כללי Water & the Environment
What was the percentage of people on earth that lived under freshwater shortage in the beginning of the 20st century, and what was that percentage in the beginning of the 21st century?
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מיין לפי
* השאלה נוספה בתאריך: 09-07-2025