Answer:
A cannot be accurately measured
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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Geographers use a lot of tools like the compass and the measuring tape. You have to list the tools for me to choose which one is not used by the geographers.
Answer:Many ecosystems can exist in one biome because a biome is just a geographic area where ecosystems are. An ecosystem is the interaction between living and nonliving things.
Explanation:
Emperors in Russia were called tsars.
