It does a great job of explaining how the San Andreas fault created and has maintained the lagoon for thousands of years."
(It; does; a great job of explaining how the San Andreas fault created and has maintained the lagoon for thousands of years) (the San Andreas fault; has maintained; the lagoon for thousands of years)
It the San Andreas fault
does has maintained
a great job of explaining how the San Andreas fault created and has maintained the lagoon for thousands of years
the lagoon for thousands of years