Light colored igneous rock is called felsic, it is high in quartz, muscovite mica, and orthoclase feldspar content. Dark colored igneous rock is called mafic, and contains a lesser amount of silica along with olivine, pyroxene, amphibole, biotite mica, and plagioclase feldspa
<span>Light coloured igneous rocks (felsic) tend to have greater silica and aluminum content and a lower iron and magnesium content than dark (mafic) rocks.</span>
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1. Roman Catholics established frontier posts known as missions. The first choice is the right one.
2. Today, most Mexicans are Roman Catholic. The first choice is the right one.
3. Today, the majority of Mexicans are are Mestizos, or people of mixed European and Indian ancestry. The first choice is the right one.
4.In 1821, Mexico finally won its independence from Spain. France did not rule Mexico. The first choice is the right choice.
For these four questions, the answers are the first choices listed.
Answer:
the Appalachian Mountain
Explanation:
The European settlers in what is now the United States quickly started to push the natives of their lands and create their colonies. As they were doing so, they started to establish towns and villages, create their own plantations, implement their rules and laws. But this was all happening along the eastern coastline and in close proximity to it. The reason for this was that they had a very big natural barrier in front of them that didn't allowed them to spread out toward the west. This natural barrier were the Appalachian Mountains. The Appalachians are a mountain range that separates almost all of the eastern coastline area from the interior of the country. These mountains are relatively high, had very dense impenetrable forests, and were very dangerous for crossing, so the Europeans avoided them until they developed better means of travel and transportation.
Polymineralic and igneous rock
