GEOLOGY

Detailed explanation-1: -Compressive stress happens at convergent plate boundaries where two plates move toward each other. Tensional stress happens at divergent plate boundaries where two plates are moving away from each other.

Detailed explanation-2: -Compression is the most common stress at convergent plate boundaries.

Detailed explanation-3: -Convergent: compressional; plates move toward each other. Includes: Subduction zones and mountain building. Transform: shearing; plates slide past each other.

Detailed explanation-4: -A chain of volcanoes often forms parallel to convergent plate boundaries and powerful earthquakes are common along these boundaries. The Pacific Ring of Fire is an example of a convergent plate boundary. At convergent plate boundaries, oceanic crust is often forced down into the mantle where it begins to melt.

Detailed explanation-5: -About 80% of earthquakes occur where plates are pushed together, called convergent boundaries. Another form of convergent boundary is a collision where two continental plates meet head-on.