A Korea is still divided to this day
I think that one of the main ones most of the time is drought as we have such a dry and hot climate. But currently flooding is an issue, in Tasmania we just had the biggest flood since the 1921 floods (Look it up).
Northern parts of Australia are also prone to tropical cyclones
The correct answer is expanded into southern India to control trade routes
Explanation: Chandragupta had a true empire that stretched from the Indus to the Ganges, dominated the delta of these two rivers, and was supported by a mighty army. The administrative organization seems to have been well undertaken, overseen by imperial inspectors, and facilitated by the good state of the roads which the sovereign had taken great care of. It was no longer a question for Seleucus to despise the alliance of such a powerful monarch: he left his territories beyond the Indus and bestowed on her the hand of a Greek princess. From that moment on, India entered the orbit of the great empires of time; its capital, situated in Pataliputra or Magadha, was for many decades the center of a Greek embassy which Ambassador Magastenio illustrated, and whose information is precious, though secondhand.
