Answer:
m<B = 83°
Explanation:
The figure given is a parallelogram having opposite sides that area parallel to each other. Therefore, opposite angels are congruent while the adjacent angles are supplementary.
<A and <B are adjacent angles. Therefore,
m<A + m<B = 180°
97° + m<B = 180° (substitution)
m<B = 180° - 97
m<B = 83°
Maps have a legend at the bottom of the map that tells you what each symbol means. The other things are not seen on a map.
The correct answer is B Subduction. Subduction is the process by which an oceanic plate gets dragged under another plate and is eventually destroyed in the mantle. Subduction occurs at convergent margins where two oceanic plates collide or an oceanic and Continental plate collide. Oceanic crust is made of mainly of silica and magnesium which is heavier or denser than continental crust which is composed mainly of silica and aluminium.
The subducting plate melts producing excess magma giving rise to volcanoes along these margins.
