Using rates of erosion to determine absolute age is only practical for geological features that have not been disturbed. If the layers of the soil are undisturbed, be it by human action or natural disturbance, than the layers are sitting on top of each other and mark the separate periods of time with their characteristics, so it doesn't matter how big of an erosion has taken place, there's still remains of a certain period and determine its age.
Answer:
Question 3: True
Question 4: False
Question 5: option a
Explanation:
Question 3:
In the Bowen's Reaction arrangement, the persistent arrangement portrays and clarifies the development of the plagioclase feldspars as they advance from being calcium-rich to incfeasingly sodium-rich with consistently falling temperature conditions.
Then again, the discontinuous arrangement depicts the development of the mafic minerals, for example: pyroxene, olivine, biotite mica and amphibole each at an unmistakable temperature.
Question 4: False
Fractionation and crystal settling are a piece of partial crystallization and they are internal procedures.
Question 5: option a
Viscosity of a given magma increments with expanding silica content, diminishing temperature and diminishing volatile substance.
Answer:
139
Explanation:
<1 of f=41
Corresponding angles are equal
<2of f =139. (Linear pair)
180-41
Answer:
Why are drums so important in many African cultures? A. They are used to gather a community together and for ceremonial purposes.
Explanation:
