How did Anne Frank and her family let people on the outside of the Annex know that they were ok?

Germany raced to build the largest navy.

What was the colonists main objection to the stamp act

Consider the events in alfred wegener's life that led to his development of the continental drift hypothesis. review the items below and determine whether each item is (1) an observation that led alfred wegener to develop his continental drift hypothesis, or (2) evidence wegener gathered to support his proposal.