The Richter scale is used, from 0.1 to 9.0 magnitude. The Richter scale is determined from the logarithm of the amplitude of waves recorded by seismographs.
The circumference of circle is 20.096 units
<em><u>Solution:</u></em>
Given that circle has a diameter with endpoints at (10, 8) and (5, 4)
To get the diameter, find the distance between the end points
<em><u>The distance between two points is given by formula;</u></em>

Here the points are (10, 8) and (5, 4)

Substituting the values we get,


Thus the diameter is 6.4 units
<em><u>The circumference of the circle is given by formula:</u></em>

Where "d" is the diameter of circle

Thus circumference of circle is 20.096 units
Schist has the highest metamorphic grade.
Long-term health effects from air pollution include heart disease, lung cancer, and respiratory diseases
Short-term air pollution can aggravate the medical conditions of individuals with asthma and emphysema.
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