Φανταστείτε το εξής σενάριο: είστε κάτοικος ενός μικρού χωριού στην Αφρική. Ποιες είναι οι συνθήκες διαβίωσής σας; Έχετε πόσιμο νερό; Και αν ναι, είναι αμφισβητήσιμη η ποιότητα του νερού; Και…
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