The horizon!!! This is basic. Brainliest answer over here!!
A succession of ocean waves set in motion by a submarine earthquake (also known as underwater earthquake) is called a tsunami. This happens when tectonic plates move, converge, or subduct. Submarine earthquakes are common in Asia where there’s a submarine earthquake zone called Pacific Ring of Fire.
<span>Sinkholes, especially like the one that occurred in Mexico City, are often sign that the water reservoir is being depleted. Usually, the water underneath the ground helps stabilize it, however if there is suddenly open space or a cavern, it can collapse on its self causing a sink hole. This could also happen from fracking and drilling.</span>
Desert and Rainforest, I believe this could the right answer