Oceanic-oceanic plate convergence also results in the formation of undersea volcanoes. Over millions of years, however, the erupted lava and volcanic debris pile up on the ocean floor until a submarine volcano rises above sea level to form an island volcano.est Answer: When two oceanic plates converge one is usually subducted under the other and in the process a deep oceanic trench is formed.
Significant Figures is important in scientific calculations because it deals with a problem of measurements. Without significant figures, it is difficult for some scientist to â¦ calculate very large and small measurements.
The concept of significant figures (or digits) is a convention for expressing the accuracy of a measurement. When working with real-world data, it is crucial that every measured value be as accurate as possible. Attempts must be made to minimize uncertainty when expressing measurements.