Answer:
The color is considered dark if the rock appears as a dark gray to black (pyroxenes, the amphibole Hornblende, the mostly Ca-plagioclases near Anorthite, and Biotite mica. Density is a property that is proportional to the composition of the rock. The higher the amount of silica (felsic) the less dense the rock will be.
Explanation:
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That's true of both <em>South America</em> and <em>Africa</em>.
Natural environment is of crucial importance for social and economic life. We use the living world as<span>a resource for food supplyan energy sourcea source for recreationa major source of medicinesnatural resources for industrial products</span><span>In this respect the diversity of nature not only offers man a vast power of choice for his current needs and desires. It also enhances the role of nature as a source of solutions for the future needs and challenges of mankind.</span>
Answer:
European Union created an open market where goods and people are being transferred without limitations that existed when the borders were closed. That is why people can freely travel, get jobs and many other benefits inside the member countries of EU.
Explanation:
The idea of EU started developing after WW2, and the countries that started developing that idea were France, Germany and Benelux countries.
It has developed into one of the most important economic forces in the world, and also unified Western Europe in a common struggle for a better life.
The earth isn't getting bigger even though the continents are spreading apart is because the continents are simply being shifted from one location to another, but no land or mass is being created. The mass of certain parts of the world is simply being displaced from one location on the earth to another or its shape is simply being changed by being pushed up or below the earth's surface.
