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Anosh Waghmareanswered this
Q2.
a : The relative direction of plate is drawn on map below.At middle of the ocean there is divergent boundary hence new crust is forming and moving towards each continent.Also the continent B is moving in direction of the ocean.Oceanic plate is subducting under continental plate B.
b : Red triangles are drawn along the subduction zone i.e the convergent boundary where volcanic activity is experienced due to subduction of denser plate below less denser plate.
c : Earthquakes are also experienced along the subduction zone marked with black circle.
d : The younging direction of lithosphere is drawn in below map and labelled.Along the divergent boundary new crust is formed and plate move away from each other.Therefore along mid oceanic ridge new crust is formed and the crust gets older as we go away from mid oceanic ridge.In simple words the lithosphere near the continents is older and lithosphere at mid oceanic ridge is younger.
please refer the below image for drawing and labelling of questions a,b,c,d.
