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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B. The continents on a map looked like they fit together.
A is the theory he proposed <em>after</em> making this observation
C and D would disprove his theory, not support it.
Yes, countries are always making new alliances.
Answer:
The Colorado River (that is The lost river) proceeds from Rocky mountains into the Gulf of Calfornia. At the US & Mexico border, the Colorado river deflects into the farmland & orchards of different states of USA eldorado valley and other smaller basins.
After eight weeks of running through its delta, the fresh waters of the Colorado River meets the high tides of the briny sea.
Colorado’s nutrient-rich freshwater used to mixed with the Upper Gulf’s salty tides to create the perfect water chemistry and nursery grounds various water creatures of great commercial and cultural importance to the region, this was prior to the construction of big dams and diversions of the 20th century.
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