- One long-term effect of the Navigation Act was that it
1. Became a cause for the American Revolution
2. Build up the economy of the New England colonies
3. encouraged colonists in North America to expand trade agreements with American
Indians
4. led to the imposition of heavy taxes on the North American colonists in the early 170
1. Became a cause for the American Revolution
2. Build up the economy of the New England colonies
3. encouraged colonists in North America to expand trade agreements with American
Indians
4. led to the imposition of heavy taxes on the North American colonists in the early 170