from where did the last mention region get its name?
It gets its name from the historical Bengal region.
Bay of Bengal
The bay gets its name from the historical Bengal region (The Indian state of West Bengal and modern-day Bangladesh). In ancient scriptures, this water body may have been referred to as '"Mahodadhi"' (Sanskrit: महोदधि, lit. "great water receptacle") while it appears as "Sinus Gangeticus" or "Gangeticus Sinus", meaning "Gulf of the Ganges", in ancient maps.
where do cyclones occur in the southern hemisphere They generally form on a regular basis between the African coast and the middle of the South Pacific. what is "tropical cyclone basins"? They are divided into seven basins. These include the "North Atlantic Ocean", the eastern and western parts of the "North Pacific Ocean", the southwestern “Pacific Ocean", the southwestern and southeastern "Indian Ocean", and the northern "Indian Ocean" i.e. "Arabian Sea" and "Bay of Bengal".
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Bay of Bengal [SEP] Etymology
The bay gets its name from the historical Bengal region (The Indian state of West Bengal and modern-day Bangladesh). In ancient scriptures, this water body may have been referred to as '"Mahodadhi"' (Sanskrit: महोदधि, lit. "great water receptacle") while it appears as "Sinus Gangeticus" or "Gangeticus Sinus", meaning "Gulf of the Ganges", in ancient maps. The other Sanskrit name for Bay of Bengal is '"Purvapayodhi"' (Sanskrit: पूर्वपयोधि, lit. "Eastern Ocean"). Bengali name "Bongoposagor"(বঙ্গোপসাগর) has been derived from the English meaning of "Bay of Bengal". Similarly, Odia name "Bangaposagara"(ବଙ୍ଗୋପସାଗର) or other Indian names have been ascribed later by translating colonial dialect.