<span>If you see a very tall, rock feature that looks like a jagged, rectangular block sticking out of the ground, you're probably observing a volcanic neck. Also known as a lava neck or volcanic plug, a volcanic neck is formed when magma solidifies within a vent of an active volcano. This can harness great amounts of pressures which could lead to an explosive eruption.</span>
Answer: titration curve
Explanation:
A titration curve is a graphical representation of the pH of a solution during a titration. The figure below shows two different examples of a strong acid-strong base titration curve. On the left is a titration in which the base is added to the acid and so the pH progresses from low to high.
Answer:
True
Explanation:
The primary reason magma forms at subduction zones is that the subducting plate carries a cover of sediments, water, and hydrated minerals down with it, which lowers the temperature required for the adjacent overlying mantle lithospheric rock to melt.True
Subduction is a geological process that takes place at convergent boundaries of tectonic plates,this zones are the second most important environment on Earth for volcanic eruptions
Magma is produced in the subduction zone as a result of the subducting plate carrying a cover of sediments, water, and hydrated minerals down with it, which lowers the temperature required for the adjacent overlying mantle lithospheric rock to melt. Due to the heat caused by it rubbing against the other plate as well as the natural heat of the mantle in the earth crust, the plate melts and turns into magma, also the melting of peridotite in the presence of water results in the generation of magma,this addition of fluids lowers the melting point of the mantle.
magmas in subduction zone volcanoes are often explosive, because they arrive at the surface as very sticky and gas rich
