Unit Question: How valuable is a rock?
The value of a rock depends on what rock it is. If its volcanic cinder, you could make some weird floating thing from it (it floats when still boiling hot) or if its obsidian, you could make a foot scrubby factory based on a single product.
Living near a volcano or fault line near the edge of a tectonic plate gives some Pro's and Con's. Some Pro's are that you have tons of fertilizer due to all the nutrients from volcanic ash and debris (if you live near a volcano) and the fact that it's (sometimes) comlpetely quiet due to loss of life tends to scare people unless you live near the Himalayas (GIANT fault line)
The uses of volcanoes help people a lot. Scientists got interested in volcanoes and due to the heat volcanoes are great geothermal spots. They also have nutrients so farmland is excellent there. The rocks that they give off helps us every day. Our toes would get all covered in dead skin if volcanoes weren't around. Obsidian is used to do just the job. Many more rocks help us to get through out everyday life.The more we learn about volcanoes and their uses, the more interesting they get. We are truly lucky to live on a planet like this.
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