Pacific-Ring of Fire is the other name for the Circum-Pacific Belt. Among the options given withing the question, the correct option is option "C". It is actually the zone of earthquakes where 90% of the earthquakes of the world takes place. Numerous volcanic eruptions also occur in this region. This is a region where there is continuos shift of the tectonic plates and this results in either volcanic eruptions or earthquakes or both. Numerous volcanoes are also a part of this region. It is a horse-shoe shaped region. It has almost 452 volcanoes and they are either active or dormant.
Answer: Corona or chromosphere.
Explanation:
The appropriate answer is B. Chains of volcanoes along ocean coastlines. The theory of plate tectonics states that the earth's crust is divided into plates that float on the semi-molten mantle below. Plates can converge, diverge or slide past each other. Chains of volcanoes along coastlines are evidence of plates converging with one plate subducting beneath the other. The subducting plate will melt producing magma which is lighter than surrounding rock and so will force its way through cracks and fissures in the surface. Once magma reaches the earth's surface, volcanoes are formed.