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>
Answer: The primary cause of monsoons is the difference between annual temperature trends over land and sea.
Explanation:
The appropriate response is optic, photograph, medic, or surgical instruments. US-Mexico exchange is very nearly a remodel. US President Donald J. Trump says he needs to quicken converses with renegotiating the North American Free Trade Agreement, an arrangement he says has been a "disaster" for America laborers. Trump has boasted a 20% import charge on every single Mexican item to back his outskirt divider.
Answer:
The use of government expenditure and taxation to impact the economy is a big part of policy. A governing body inside a company is more likely to establish policies. Most policies' significance as a policy instrument has grown and gone. Before 1930, a laissez-faire, or small government, approach dominated. When it comes to influencing the economy, policymakers have two basic tools: monetary policy and fiscal policy.