Question

1. what is a tsunami?

○ a thick fog
○ a heavy rain
○ a big tornado
○ a giant wave

Explanation:

A tsunami is a series of large, powerful ocean waves caused by underwater disturbances like earthquakes, volcanic eruptions, or landslides. The other options describe different meteorological phenomena: fog is a low-lying cloud, heavy rain is precipitation, and a tornado is a rotating air column.

Answer:

a giant wave