B. there are four hemispheres in the world
1.Southern hemisphere
2.Northern hemisphere
3.Western hemisphere
4.Eastern hemisphere
<span>the correct answer for this question is C - the currents responsible for powering the movement of tectonic plates are convection currents. Convection currents are those currents that occur due to a temperature exchange.</span>
SOS:
<u><em>Sierra Leone</em></u> is the answer!
<em>Hope this helps!!</em>