From where do the soil in the indus valley receive its rich silt

Mesopotamia. But other river civilizations had silt also.

a

explanation:

the dominoes began to fall. the surrender at appomattox took place a week later on april 9. while it was the most significant surrender to take place during the civil war, gen. robert e. lee, the confederacy's most respected commander, surrendered only his army of northern virginia to union gen. ulysses s. grant

explanation: