Question
1. On Earth’s surface as a whole, what process generates the greater volume of volcanic rock, decompression meting or fluid-induced meting? which of these processes creates the more dangerous volcanoes?
2.what is the difference between magma and lava? describe a geologic situation in which a magma does not form a lave.
3.what are the three major types of volcanic rocks and their intrusive counterparts? Is Kimberlite one of these three types?
4.what type of volcano is the Arenal volcano, shown in Figure 12.10?
5.what evidence suggests that the Yellowstone volcano was produced by hot spot?
6.how do scientists predict volcanic eruptions?
Book – Understanding Earth seventh.
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