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Phong Nha Cave Quiz
Test your knowledge about Phong Nha cave and its geological significance with this quiz.
Which river flows through Phong Nha cave?
Mekong River
Red River
Son River
What is the largest cave in Phong Nha?
Son Doong
Hang En
Paradise Cave
What type of rock formations are commonly found in Phong Nha cave?
Sandstone cliffs
Limestone karsts
Stalactites and Stalagmites
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