Answer:
C. plagioclase
Explanation:
From the magma silicate crystals are formed successively when the magma temperature reaches the typical melting temperature for each type of crystal. The first crystals formed at high temperatures can then change their composition or dissolve again. In this way the crystals already formed contribute their ions, molecules and atoms to magma and combine again forming new crystals whose melting temperature is lower than that of the first crystals formed. The new crystals are said to be stable at the lowest temperatures set now. These processes of change are called reactions. As several successive reactions occur as the magma temperature decreases the ordered series of reactions is called the BOWEN series in honor of the Canadian scientist who formulated this concept. There are two types of reactions, the continuous reaction and the discontinuous reaction.
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By continuous reaction a crystal formed at high temperatures such as a plagioclase rich in the Ca2 +</u> component gradually varies its composition by replacing a portion of the Ca2 + ions with the Na + ions and a portion of the Al3 + ions with the Si4 + ions. To maintain its neutrality, the replacement of Ca2 + by Na + is coupled with the replacement of Al3 + by Si4 +. The series of continuous reaction starts from the plagioclase rich in Ca2 +, passes through several plagioclase of intermediate composition towards the plagioclase rich in Na +
It would be a line going straight through the graph under the middle.
Answer:
Its D: was divided into seeral smaller new nations
Explanation:
i just took the test on edge 2021
Answer:
The correct answer is C. Some experts have predicted that Romania's economy will improve in the short term.
Explanation:
Since 2002 there have been in Romania years of successful economic growth which has been estimated to be 4.5% per year, which has grown to more than 5% in 2005. Since 2003, wage increases have exceeded the inflation rate, which was around 1.2% per month, but subsequently decreased. In 2005, inflation dropped to 7.8% per year and was estimated to decline also for 2006. Real estate prices are also increasing.
Romania was invited to join the European Union in December 1999, the date on which negotiations began. It entered the EU on January 2007 together with Bulgaria.
The strengths of the Romanian economy vary from region to region. The capital and largest cities in southern and western regions have a per capita GDP, with values approximately double or above the country average. This is a significant economic difference between urban and rural areas.
According to data from the Romanian National Institute of Statistics, in 2019 GDP grew by 4.7% on an annual basis, while the unemployment rate was 4%.
