No exact number is listed from what I've seen, but they are on the endangered list. More on the lower side.
The correct answer is - B) convection currents in the mantle.
There's multiple tectonic plates on the surface on the planet, around 17 from what is known so far, but as the scientific methods are developing there might be few more discovered in the years to come.
These plates are all moving, only few cm per year, but on the long term it influences and changes everything on the surface on the Earth.
The movement of the plates is the result of the convection currents in the mantle layer beneath. These convection currents are essentially the combination of the high temperatures, high pressures, and viscous metals, and they managed to break up the crust on the surface, and with its push force, they are slowly moving the plates.
With the movement of the plates and their collisions and moving away, lots of earthquakes and volcanoes are appearing all over the plate boundaries.
There were several immediate actions that were most likely taken in the Hawaiian islands to prevent the loss of life as the tsunami approached. Some of the immediate actions would of been to sound the alarms for the residents of the area, move to higher ground, and broadcast radio and television bulletins to alert the people. Ships would of also needed to be moved away from the coast.
Answer:
the correct answer is letter C
Explanation:
