The ring of fire is a region of tectonic activity. this means that it is an area where are especially common.

a. earthquakes
b. droughts
c. thunderstorms
d. tornadoes

( A) earthquakes is a correct answer.

Explanation:

The Ring of Fire is a region of tectonic activity. This means that it is an area where earthquakes are especially common because:

The ring of fire is the area present along the way of the Pacific ocean, which is prone to earthquakes, around 90% of the earthquake has result along the Ring of Fire.

Ring of fire is formed result into the movement of tectonic plates and it causes collisions in the lithosphere plates.

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added