Answer:
colonialism had a huge impact on the lives of Africans economic policies were adopted by Europeans.Africa's tradition lifestyle and culture were destroyed ,land was taken away from people ,by the colonial power it became a problem after world war ll when European countries were financially devastated, cash crops were introduced to meet industrial needs of European countries cocoa ,coffee ,tea these are some examples ,till today African on it own isn't doing very well ,it a both a developed and developing country ,like in terms of health care we don't really have everything we need in a country
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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>
