Answer:
It is thicker below mountains than in valleys.
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4th option. the movement of people to cities.
Cultural imperalism is the answer
Schist
Option 2.
<u>Explanation:</u>
Schist is a type of a metamorphic rock but it is a medium grade of these metamorphic rocks. It is formed by the metamorphosis of the mud stone or the shale.
These type of metamorphic rocks can also be formed from igneous rocks provided these have been subjected to higher degrees of temperature or pressure. These are type of rocks which do not solidify from magma even despite subjection to intense heat and pressure.
Fresh water resources are not distributed evenly because some places are more dry than other like the deserts in the middle east and africa.