QuizMe

* השאלה נוספה בתאריך: 23-07-2022

		Start at the sources and flow down the river
		Start at the estuary and go up towards the sources
		Start in the more polluted areas
		To initiate in several places in order to stop polluting factories

In purifying a polluted river like the Ganges in India, it is better to: בטיהור נהר מזוהם כמו הגנגס בהודו, עדיף