What prevented the lapita, polynesians, and others from developing an empire in oceania and nearby regions of the world?
1. being conquered by others2. too few people living there3. lack of scientific knowledge4. areas of ocean between land

4,areas of ocean between land

Explanation:

Hello! The oceans and seas are the habitats of thousands of species. The extent of them is immense and is the main reason of why these civilizations could not expand, due to the interference of the sea between the lands were located. The ubication was difficult for the expansión.

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1. artillery

2. jose san martin

3.their economies remained dependent on outside powers.

4. drafted new economies

5. democracies have replaced dictatorships