Question

Q. What happened when wheel was invented? (give answer only two minutes)

Answer 1

After the invention of wheel the transport of goods became easy and affordable.Earlier,before the invention of wheels people used to carry their goods either on their back or used any domestic animal for the purpose.But after invention of wheel the goods were carried easily from one place to another.Further the improvement lead to development the wheel i.e. wheels were made from rubbers.

Answer 2

It caused revolution.

Hope this helps....