which of the follwoing cause tsunami?
1, landslide occurs in the ocean
2, earthquake occurs in the ocean
3, volcanic eruption on the ocean floor
4, collision of ocenaic plates
A, 123
b, 134
c, 234,
d, 1234
the answer is A, but as i know collision of oceanic plates triggers tsunami too. aint i right?? can any high hands help?