How can you determine the growing rate of a volcano?

To determine the growth rate of a volcano, you need to set up a ratio using the given information. The rate at which the volcano grows is initially given to you as 5,000m over 300,000 years. To calculate the growth rate per year (x/1 year), you can use cross-multiplication. Multiply 5,000m by 1 year, and multiply 300,000 years by x. This gives you the equation: 5,000m * 1 year = 300,000 years * x Simplifying this equation, you get: x = (5,000m * 1 year) / 300,000 years This will give you the rate per year.