Canals are often time-consuming and expensive to build, this was a large challenge faced in building them. Also, geographical challenges and topographical challenges can often make canal building difficult.
Answer:
The Ural mountain marks the traditional boundary between European Russia and Asia Russia
Explanation:
The Ural mountain are old and worn out with an average height of 610m,the Ural mountain is rich in iron ore and mineral gas like methane
Answer:
greenland
Explanation:
hope its right
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Answer:
B option is correct of course!!
It has layers because sediments continue to build up with the lighter stuff on the surface which pushes previous sediments down into layers.