What is a steep, almost vertical face of rock on a mountain called?
a) Dune
b) Cliff
c) Delta
d) Oasis
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Answer: b) Cliff
Explanation
- Cliff: A steep, high, and almost vertical exposure of rock, soil, or sediment. Cliffs are common along coasts, in mountainous areas, and along rivers, formed over long periods by weathering and the erosive forces of water, wind, or ice.
Overview of Other Options
- a) Dune: A mound or ridge of sand deposited by the wind, commonly found in desert environments (like the Thar Desert) or along coastlines.
- c) Delta: A landform formed at the mouth of a river where it flows into an ocean, sea, or lake, depositing accumulated sediment (e.g., the Sundarbans Delta).
- d) Oasis: An isolated area in a desert where a natural water source (such as a spring or underground aquifer) allows vegetation and palm trees to grow.
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