Answer:
When Humayun was busy in conquering Gujarat, Sher Shah Suri strengthened his position in Bihar and Bengal. He also cut off his (Humayun) line of communication with Agra. In the Battle of Chausa, in 1539 CE, Humayun troops were defeated by the sudden attacks of Sher Shah Suri's army
Explanation:
I maybe c I hope u pass :D
The three powerful dynasties that developed after Alexander the Great's death were. Ptolemy dynasty, Seleucus dynasty and Antigonid dynasty. For Ptolemy dynasty, they were absorbed with the Roman Empire and because their rulers were not effective, they were under control by the Romans in Egypt. For the Seleucus dynasty, they lost control over the Asia Minor against the Roman Empire and was abolished by Pompey the Great. Antigonid dynasty lost their war against the Romans because of the three "fetters" of Greece through three wars.
