Polaris, the current polar star to the north, has assisted many navigators in determining latitude, which is crucial to sea travel.
identify the appositive or appositive phrase.
a. the current polar star to the north
b. many navigators
c. latitude
d. which is crucial to sea travel

Your answer would be A.the current polar star to the north

I believe the answer would be A. The current polar star to the north 

The big bang theory suggests that the universe is constantly expanding and that stars, galaxies and other entities are moving away from each other. if there were a galaxy moving closer to earth then that would contradict the big bang theory since the entities should be moving away from earth and from each other.