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:
Caucasus Mountains separates Europe from SouthWest Asia.
Explanation:
Caucasus is mountain range that streches between Blask Sea and Caspian Sea in west-east direction. This range is politically located in parts of Russia, Georgia, Azerbaijan and Armenia. It's highest point is Elbrus (5,642 m).
Caucasus is natural border between Asia and Europe. To the west border between mentioned continents runs over <em>Black Sea</em>, and in the opposite direction, over <em>Caspian Sea</em>.
Further to the west Europe and Asia are divided by <em>Bosphorus</em>, <em>Sea of Marmara</em> and <em>Dardanelles</em>.
Watershed is probabley the answer you are looking for
A thermometer, a barometer, a sling psychrometer, and a rain guage
Answer:
can you say it in english
Explanation:
