Answer:
Trade most directly affect technology of ancient India because, ancient India had a lot of money but it was not very developed, so trading with other countries helped ancient India develop more with technology. I hope this helps. :)
Explanation:
Answer:
How do you prove that the distance between one black dot and one white dot is one unit ? You don't, because it's false. If all black dots happen to be on the line and white dots on the line (and the rest of the plane is neither white nor black), there is no such pair.
Explanation:
