Final answer:
The statement is true; there are two types of interference: constructive and destructive, which describe the ways in which waves can combine to form a resultant wave with a greater, lower, or unchanged amplitude.
Step-by-step explanation:
The statement that the two types of interference are constructive and destructive interferences is indeed true. Interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude. Constructive interference occurs when the phase difference between the waves results in a net increase in amplitude, while destructive interference happens when the waves are out of phase and partially or completely cancel each other out.