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>
Colorado...................
Answer:true
Explanation:As World War II was about to end in 1945, nations were in ruins, and the world ... would prevent another world war like the one they had just lived through.
Answer:
D. One-third
Explanation:
A. is not the right answer. This is too little to spend on the shelter in a year.
B. is not correct. This would be too much to spend on the shelter.
C. is incorrect. One-quarter is the same as one-forth, therefore inccorect.
<u>D. is the right answer. On avarage, one third of earnings and consumption in American household would go on shelter, meaning housing, utilities, rent etc. </u>
Answer:
It shows the geographic distribution of the monthly or annual average values of climatic variables such as temperature, precipitation, relative humidity, percentage of possible sunshine, isolation, cloud cover, wind speed and direction, and atmospheric pressure over regions ranging in area.
