Answer:
x + 4 + 3x + 2 = 90
4x + 6 = 90
-6 -6
4x = 84
x = 21
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Explanation:
For the answer to the question above, <span> the geologists must look closely at the physical properties of a mineral. These properties can include the color, streak, hardness, cleavage, specific gravity, crystal form, and others factors.
I hope my answer helped you
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Answer:
Due to erosion.
Explanation:
An unconformity refers to a type of geologic contact that occurs boundary between rocks. The main causes of Unconformities is erosion, wears away rocks and rock deposits never form. The most common cause of unconformity is erosion in which the younger rocks spread on older rocks with the passage of time. In Cardenas layer, erosion is also occurs that leads to unconformity in that region which leads to the formation of boundaries in the rocks.
Answer:
Colonization Of Africa by European countries.
Explanation:
When Europeans truned to imperalism (colonization) they dominated Africa, stripping them of their culture, forcing them to adapt to the European life.