What final lines of the declaration of independence illustrate the magnitude and unity of the signers?

The concluding sentence of the Declaration of Independence is an undertaking among the signers, to “mutually pledge to each other our Lives, our Fortunes, and our Sacred Honor,” and several of them and their fellow loyalists did in fact sacrifice their lives and affluences in service to the country.

the geography of greece

led to limited interactions with other cultures in the mediterranean

was rich in natural resources and led to repeated invasions from the macedonians

encouraged greater contact with peoples on the southern and eastern mediterranean coasts

caused the greeks to eventually relocate eastward under alexander the great