Lava flows are the least hazardous of all processes in volcanic eruptions. How far a lava flow travels depends on the flows temperature, silica content, extrusion rate, and slope of the land. A cold lava flow will not travel far and neither will one that has a high silica content. Such a flow would have a high viscosity<span> (a high resistance to flow). A basalt flow like those in Hawai'i have low silica contents and low viscosities so they can flow long distances. Such a flow can move as far away as 4 km from its source and have a thickness of 10 m (Bryant, 1991). These flows can move at rates of several kilometers per hour (Scott, 1989). </span><span>More silica-rich flows can move as far away as 1.3 km from their sources and have thicknesses of 100 m (Bryant, 1991). These flows can move at rates of a few to hundreds of meters per hour (Scott, 1989). If a lava flow is channelized or travels underground in a lava tube then the distance it travels is greatly extended.</span>
Explanation:
plate tectonics is where earths crust separates. into different plates there can be continental plated like continents and ocean plates
Answer:
Families of characteristics, age
Explanation:
Fossil fuels are nonrenewable
Answer:
See in explanation below.
Explanation:
Mount Saint Helens and Paricutin are different in their elevation. mount St Helen's elevation is 8,366 feet, while Paricutin's elevation is 9,186. However both are similar because they both have the cinder cone shape.
