GEOLOGY

Detailed explanation-1: -Detailed Solution. The correct answer is option 3 i.e Ocean current.

Detailed explanation-2: -The theory of plate tectonics revolutionized the earth sciences by explaining how the movement of geologic plates causes mountain building, volcanoes, and earthquakes.

Detailed explanation-3: -Some of the steepest mountain slopes in the world got that way because of the interplay between terrain uplift associated with plate tectonics and powerful streams cutting into hillsides, leading to erosion in the form of large landslides, new research shows.

Detailed explanation-4: -An example of a convergent boundary that causes frequent earthquakes is the west coast of the United States. While tornados, tropical storms, and tsunamis created by mass wasting are all natural disasters; they are typically not the result of plate tectonics.

Detailed explanation-5: -Most of the world’s earthquakes, tsunamis, landslides, and volcanic eruptions are caused by the continuous motions of the many tectonic plates that make up the Earth’s outer shell. The most powerful of these natural hazards occur in subduction zones, where two plates col-lide and one is thrust beneath another.