Answer:
Partial melting occurs when only a portion of solid is melted. It is thus enriched in the chemical components of minerals with lower melting temperatures and the remaining unmelted portion of the rock is composed of minerals with highest melting temperatures. Partial melting preferentially enriches melts with incompatible elements.
Partially melted rock do not usually experience complete melting inside the Earth, due to their different chemical composition and their melting points.
It is thought that partial-melting processes play a major role in generating more-defined liquids from less-evolved ones, so that many basalts may be the result of partial melting in the upper mantle, and many granites may have derived partly or completely from the partial melting of continental crust (anatexis).With increasing temperature and pressure, the subducted oceanic crust (of basic composition) first undergoes metamorphism and then begins to melt or release watery fluids; this material rises into the overlying mantle, which may also begin to melt, giving rise to intermediate magma.
''Most Europeans speak more than one language'' this statement best describes how Europeans have adapted to their vast language diversity.
Answer: Option C
<u>Explanation:</u>
In Europe, people are proficient in more than one language which shows that they have adapted to the vast language diversity. Statistics reveal that 54% of people in Europe can speak two additional languages in addition to their native language. 25% people are able to converse in at least 2 languages and 10% of the people can speak three different languages.
Answer: They do not happen every month because the Earth's orbit around the sun is not in the same plane as the Moon's orbit around the Earth. ... Only when the Moon is crossing the plane of the Earth's orbit (the paper) just as it is lining up with the Earth and Sun will an eclipse occur.
Explanation:
Answer: D
Explanation: I just finished the exam :)
<span>Life expectancy in Sub-Saharan Africa is lower than that of more-developed nations.
Poverty is prevalent in Sub-Saharan Africa. </span>It is also<span> is the region with the highest prevalence (percentage of population) of </span>hunger<span>. When a person is malnourished as well as undernourished, he or she has lower immunity and is more prone to have diseases. </span>