My answer would be C. Humans
I choose this answer because in most recent times humans build over environments as well as sometime accidentally causing arson which destroys possibly a whole ecosystem following many different animals.
The seismic waves that shake the ground in a vertical fashion are Rayleigh waves-surface waves.
Rayleigh waves-surface waves move in an elliptical motion. They can be both vertical and horizontal component of motion in the direction of wave propagation. They are caused by earthquakes.
*assume the role of superpowers
*do not trade with superpowers
*trade only with Asian countries
*join together to achieve common goals
That is its volume.
Hope this helps :)
