Can “due to” and “because of ” be used interchangeably?

Question

Is it fine to use *due to* in place of *because of* ? How about the other way around? Are any of these sentences ungrammatical? * He was lost because of the storm. * He was lost due to the storm. * He lost his way due to the storm. * He lost his way because of the storm.

Answer 1

In this context, because of is more correct. Due to is used more appropriately as a verbal phrase. His loss was due to poor planning.