What is the relationship between the location of volcanoes and earthquakes, and tectonic plates?

Directly proportional or is significant since as many studies or geological phenomenons have recorded for example, the Philippines a country within the pacific ring of fire experiences volcanic eruptions at least every couple of years and due to that the area has been prone to subtle and strong magnitudes of earthquakes and tectonic plate occurrences. Another is Japan.

It introduces the relationship between two variables and is called correlation. Proportionality or variation is state of relationship or correlation between two variables It has two types: direct variation or proportion which states both variables are positively correlation. It is when both the variables increase or decrease together. On the contrary, indirect variation or proportion indicates negative relationship or correlation. Elaborately, the opposite of what happens to direct variation. One increases with the other variables, you got it, decreases. This correlations are important to consider because you can determine and identify how two variables relates with one another. Notice x = y (direct), y=1/x (indirect)