A tectonic plate in Earth's crust moves at a constant rate of 4 centimeters per year. In a
different part of the world, another tectonic
plate moves at a constant rate of 30
centimeters in ten years.
Is this or is it not a proportional relationship if so why?

answer: no, but if it does it's a obvious pattern.

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

yes the data was not prsented

step-by-step explanation: