"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.
The supernatural birth of Christ, his miracles, his resurrection and ascension, remain eternal truths, whatever doubts may be cast on their reality as historical facts.
Writing, I'm convinced, should be a subversive activity - frowned on by the authorities - and not one cooed over and praised beyond common sense by some teacher.
