According to the source, ten countries abstained, while 21 voted in favor

The IAEA's 35-nation Board of Governors passed an Iran nuclear resolution with 21 votes in favor, 3 against, and 10 abstentions amid rising geopolitical

VIENNA, June 10 (Reuters) - The U.N. nuclear watchdog's 35-nation Board of Governors passed a U.S.-backed resolution on Wednesday telling Iran to declare its remaining enriched…