Please see attached file for my answer.
A major factor that continues to contribute to terrorist activities in the middle east is the instability of the governments due to constant military conflicts. he presence of insurgents within the Middle east countries have also added fuel to fire in this respect. I hope it helps you.
Answer: B. Confining pressure decreases on a rising magma, allowing gas bubbles to expand and fracture the magma. This process further decreases pressure on the magma and will result in an explosive event.
Explanation: The bubbles inside the magma are responsible for making it bubble to the surface of the earth crust and the explosion that follows. As magma rises to the surface of the earth, it absorbs gases and water vapor which forms bubbles in the magma. As the pressure decreases in the magma, it causes these bubbles to increase. When the rise of magma cannot keep up with he growth in the bubbles, there is an explosive eruption to the surface. Compare this to shaking a Coca Cola bottle before opening it.
If the magma rise keeps us with the gas bubbles, the eruption is not explosive.
<span>Layers that are less dense, such as the crust, float on layers that are denser, such as the mantle. ... Because continental crust is less dense than oceanic crust it floats higher on the mantle, just like a piece of Styrofoam floats higher on water than a piece of wood does.
hope this helps you(;</span>