Respuesta :
Answer:
1. The significance of Aryan and other tribal migrations on the Indus Valley is that they started the culture of horses and chariots. The Indo Iranians played an important part in this history of India as they were the successors of the Proto Indo Europeans.
I have decided to answer this with a song. I have attached the music sheets of this song.

The Indus Valley civilization
Was a cultural hubbub in history
It sat on the Indus River
And here is its story.
Began its rise in 7000 bc
And flourished till 600
Then attacked bye the Aryans
And the started to go dead
It had a population of up to 5mil
And never had to worry
Till the Aryans came
And they kicked up a flurry
So hope you like this little into
Into this great ancient civilization
Enjoy learning just a lot bit more
And thanks for liking my presentation.
XD hope this helped