Lapita culture or the prehistoric Pacific ocean people have developed skills in building crafts to sail the seas.
Their greatest obstacle are the miles of water separating islands. In order to reach different land masses, they have develop skills to sail and navigate the seas.
1. Civil rights are an essential component of democracy. They're guarantees of equal social opportunities and protection under the law, regardless of race, religion, or other characteristics.
2. THE IMAGE
The Rocky mountains provided the greatest obstacle to railroad expansion
Answer:
Ratifies treaties is the answer you are looking for