Question

multiple - choice question
which type of boundary experiences an outward or tensional stress due to the upward and outward flow of heat in the convection currents shown?
divergent
convergent
transform

Explanation:

• Divergent boundaries occur when tectonic plates move apart. The upward and outward flow of heat in convection currents (as shown in the image) causes tensional stress, pulling the plates apart.
• Convergent boundaries involve plates moving towards each other (compressive stress), not outward/tensional.
• Transform boundaries have plates sliding past each other (shear stress), not related to the described outward/tensional stress from convection - current - driven plate motion.

Answer:

divergent