My definition of language fluency. Fluency is a spectrum (see the video below). This is my primary criteria for determining a personâs fluency level in a foreign language: Theyâre able to use their target language to learn more target language.
Geophysics /dÊiËoÊfÉªzÉªks/ is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis.
Definitions: Volcanism: The eruption of magma onto a planet's surface. The geotherm-a graph of the relationship of temperature and depth, is a useful means of visualizing the processes the cause rocks to melt. At right, a schematic geotherm tracks the big patterns of Earth's temperature gradient all the way to its center.