Please help, can you guys tell me the answer? I will give 50 points.
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The measure of ∠QPR is 60°.
Angle MPR and ∠QPR are collinear and therefore are supplementary angles. This means that the sum of the two angle measures is 180°, and so the measure of ∠MPR is 120°.
The sum of the angles in a triangle is 180°.
Subtracting the measure of ∠MPR from 180° yields the sum of the other angles in the triangle MPR. Since 180 - 120 = 60, the sum of the measures of ∠QMR and ∠NRM is 60°.
It is given that MP = PR, so it follows that triangle MPR is isosceles. Therefore ∠QMR and ∠NRM must be congruent.
Since the sum of the measure of these two angles is 60°
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Phenomena such as erosion, loss of organic carbon, increased salt content, compacting, acidification and chemical pollution are the major causes of current soil degradation.
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