This is because it rotates about its own axis in about 29 1/2 days, which is virtually identical to the time it takes to complete its orbit around the Earth.
(This; is; because it rotates about its own axis in about 29 1/2 days, which is virtually identical to the time) (it; rotates; about its own axis; T:in about 29 1/2 days)
This it
is rotates
because it rotates about its own axis in about 29 1/2 days, which is virtually identical to the time
about its own axis T:in about 29 1/2 days