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Ukraine
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1. Crust
2. Mantle
3. Inner core
4. Outer core
Answer:
C
Explanation:
Roads can vary in elevation, since a road is essentially any path to walk on.
Hills have varying elevations - they are higher at certain points.
Rivers can flow downhill and aren't always at equal elevation.
Contour lines on a topographical map connect points of equal elevation. If you were to follow a contour line while walking, the elevation would remain constant.
Answer:
C
Explanation:
A theory is like a guess. It may be supported by observations, but it is not proven by data. If it were, it would be a scientific law
They turned to the U.S. for more resources