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Which one of the following is not the result of underground water action?
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- Stalactites
- Stalagmites
- Sinkholes
- Fiords
Correct Option: D
Geologically, a fjord is a long, narrow inlet with steep sides or cliffs, created in a valley carved by glacial activity. A fjord is formed when a glacier cuts a U-shaped valley by ice segregation and abrasion of the surrounding bedrock.