Why are some countries in oceania often grouped with southeast asia instead?
(points : 1)
there is little diversity in oceania.

oceania has a long history of war.

southeast asian governments control much of oceania.

there are two very different types of cultures in oceania.

There are two very different types of cultures in Oceania.

Explanation:

This is due to the fact they have as cultural similarities and thus are the same and are also close representatives of each other and most of them are considered to be a part of southeast Asia.  Most of these countries have various cultural and lifestyle similarities and thus groped with each other. Oceania has an areal extent of about 8,525,989 km square and a population of about 41,570,842. Earlier he the Philippines and the new guineas and present Indonesia formed Oceania.

The zhou dynasty (1046-256 bce) was the longest-lasting of china's dynasties. it followed the shang dynasty (c. 1600-1046 bce) and it finished when the army of the state of qin captured the city of chengzhou in 256 bce.