The second cycle is the day, caused by the Earth turning on its axis every 24 hours, making the Sun appear to rise and set.
(The second cycle; is; the day) (the Sun; to rise; ) (The second cycle; caused; by the Earth turning on its axis every 24 hours, making the Sun appear to rise and set) (the Sun; to set; )
The second cycle the Sun The second cycle the Sun
is to rise caused to set
the day
by the Earth turning on its axis every 24 hours, making the Sun appear to rise and set