What is continental crust composed of? Silicate Minerals: A mineral is a hard, inorganic substance (element or compound) found in nature. A silicate mineral contains silicate, which is an ion made of one silicon atom and one or more oxygen atoms. Silicate minerals are a major part of the ...
Does the biosphere have clear boundaries? What elements comprise the largest portion of the Earth's biosphere? How may layers does Earth have? Where is most nitrogen in the biosphere located? Which atmospheric layer is closest to the Earth's surface?
How the light comes from the Sun to the Earth? Of what are comets made? And asteroids? What is Earth's mantle? What elements make up the Earth's mantle? How are comets different from asteroids? Which element has the lightest atoms? Lavoisier named a new el...
become less dense and started to rise. The process starts over again, resulting inconvection currentsthroughout the pan. This same process also occurs in the atmosphere, in the air near a heater, and in many other places where there is a distinct source of heat. ...
It is predominantly composed of ferro-magnesium silicates. The mantle isn't molten, but it nears melting point, once you get 100 to 200 kilometers below the planet's surface. The mantle contains convective material, which circulates heat and may be what causes movement in the tectonic plates...
the vent. most cinder cones erupt only once. cinder cones may form as flank vents on larger volcanoes, or occur on their own. composite volcano composite volcanoes are steep-sided volcanoes composed of many layers of volcanic rocks, usually made from high-viscosity lava, ash and rock debris....
after Carl Auer von Welsbach who created the alloy out of remnant material from his experiments in creating a thorium-powered light-mantle in 1885. His thorium source was monazite sand, of which some 90-95% was composed of other rare earth metals. None of these at the time had commercial ...
During his first years on the job, sweeping out bad elements from baseball became a primary focus for Landis, a native of Millville, Ohio. 1921: First radio broadcast of an MLB game Harris & Ewing // Wikimedia Commons 1921: First radio broadcast of an MLB game On Aug. 5, 1921, ...
Themantle is mostly composed of rock, but it also contains some liquidrock that has melted under intense heat and pressure. It often collectsin pockets and can eventually erupt from volcanoes. As you probablyguessed, the mantle isn't the layer you're standing on.Finally, there's the earth'...
Question: What is the name of the moon that has a thick atmosphere made mostly of nitrogen? Moon: A moon, in general, is a lesser celestial body that orbits a planet. Moons are also called "natural satellites". Within the solar system, there are 205 known moons. ...