I have one main visual representation that I can add to my website in order to make it more visually pleasing and interactive. For the volcano topic i can have a a graph with a certain number of volcanoes. Each representing a specific number of volcanos, i will make a key. I will then stack the volcanoes on top of each other to help the viewer visualize how many new volcanos surface every year.
For the topic of flowers it might be hard to find an exact number of how many plants each year grow so I will have to do some research and find out if that number is anywhere on the internet.