What is the main difference between trigger and clock pulses ?

What is the main difference between
trigger and clock pulses ?
Answer1
in level trigger mode, the input signal is
sampled when the clock signal is either
high or low whereas in edge trigger mode
the input signal is sampled at rising or at
the falling edge.
lever triggering is sensitive to glitches
whereas edge trigger is non sensitive..
example : latch for level trigger and flip-
flop for edge trigger