the salzburgers moved to new ebenezer because they

wanted to be on the coast.
needed more fertile land.
wanted protection from american indians.
preferred living in the mountains.

The Salzburgers moved to New Ebenezer because they needed more fertile land.

Explanation:

The settlers went through many challenges at this site, which was situated on Ebenezer Creek a distance towards the river of Savannah. Because of diseases and deaths of a significant number of them, just as the infertile soil, they mentioned of General Oglethorpe that he enables them to settle near the river banks of Savannah. In 1736, they were permitted to move to the present site at New Ebenezer found where Ebenezer Creek keeps running into the Savannah River.

the french gave their support to another tribe during he war.