In the 670s how was the leadership of islam determined?

The correct answer is :  In the year 670 Mu'awiyah was governor of SIria, ill and his son Yazid, who was the son of his favorite spouse, was named as his successor. In 680 Mu'awiyah dies and many people do not agree with his successor, they consider him someone without mercy and for this he had to face many rebellions. Finally Yazid dies in one of these rebellions. He was succeeded by a sick son who also died shortly after.

mohenjo-daro is located west of the indus river in larkana district

he did it to save us from our sins, so we can see him in heaven 1 day. it's because he loves us so much. he used himself as the final sacrifice, so that we could be forgiven for our sins, so that we can see him in heaven, if we believe.