Tsunami waves have ?
1. no crests
2. no troughs
3. long wavelengths
4. short wavelengths

   I think it #3(not Sure) I think Its because of their long wavelengths that tsunamis behave as shallow-water waves.                

47r7eudueueueurudueu37373

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."