The economy of the Gulf Coast area is dominated by industries related to energy, petrochemicals, fishing, aerospace, agriculture, and tourism.
The general trend of the European population is: declining. This is due to a number of factors, the most important of them is the negative population growth: women are having less than 2 children (currently 1.6 children). and 2.2 children per woman are needed to keep the population size stable
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Answer:</h2>
Feldspar can be used to classify the rock based on <u>composition</u>.
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Explanation:</h2>
Felsic rocks are the type igneous rocks which contain feldspar and quartz; and they are typically light in color. A rock which is classified as felsic is contains a high content of felsic minerals such as quartz, orthoclase, muscovite, plagioclase, etc.
The common example of this type of rock is granite. Their chemical composition through the use of Total Alkali Silica determines the name of the felsic rocks. Felsic elements don't have enough magnesium, calcium and iron to form mafic rocks such as pyroxene or olivine.
