The answer is Loess
Loess is an aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20–50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate.
Hello. You did not present the measurements of the triangular prism, which makes it impossible for the surface area of this prism to be calculated. However, I will try to help you in the best possible way.
To calculate the surface area of the triangular prism, you will first need to identify the value of the side surface and the value of the base area. The value of the lateral surface corresponds to the area of the three rectangular sides of the figure.
After these values are identified, you must multiply the value of the base area by 2 and add the result to the value of the side surface. The result corresponds to the surface area of the rectangular prism. This can be represented by the formula:
surface area = lateral surface + (2 * base area)
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>
