Question

what has been the effect of erosion in the ural mountains?

• erosion has created more passable areas through the mountains.
• erosion has had no effect on the mountains.
• erosion has exposed many valuable minerals.
• erosion has reduced the natural deposits of iron and coal.

Explanation:

To solve this, we analyze each option:

• Option 1: Erosion typically doesn't primarily create passable areas in mountains; this is not a main effect of erosion in the Ural context.
• Option 2: Erosion always affects landforms, so this is incorrect.
• Option 3: The Ural Mountains are rich in minerals, and erosion (like weathering and wearing away of top layers) can expose valuable minerals like iron, copper, etc. This is consistent with geological knowledge of the Urals.
• Option 4: Erosion exposes deposits, it doesn't reduce the natural deposits (deposits exist underground; erosion uncovers them, not deplete the natural reserves).

Answer:

C. Erosion has exposed many valuable minerals.