What is an example of a technology that support the idea of continental drift, thus leading to a change in scientific knowledge?

SONAR, satellite radar, GPS, and deep-sea diving vessels all contribute
to accurate MEASUREMENT of the depth and motion of the sea floor, and
of the motion of the continents. 

Once the measurements are known, they can be analyzed to determine
whether OR NOT they support the idea of continental drift, or some other
hypothesis.

Real scientists don't go out looking for evidence to support the ideas
that they want supported.  That kind of approach to research is found
more in the Flat Earth department.

Clike bone scan for find heart

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.