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.
The more significant figures the more accurate the data will be. Significant figures are important because they indicate the degree of accuracy - the minimum amount by which a quantity is distinguished to be different from a similar amount. The more significant figures the more accurate the data will be.
All zeros between non-zero digits are significant. Ignore the decimal point, if necessary. For example, the number 305 also has three significant figures. So does 3.05, because the zero is between non-zero digits. Zeros at the beginning of a decimal number or at the end of a large number are not significant. For example, 546,000 has only three significant figures. The three zeros simply serve to put the 5 in the 100,000s place, and the 6 in the 1000s place.