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You look for shells when you visit the beach. However, if you're hiking in the mountains and you find shells by accident, you know that

Respuesta :

317430

Answer:

B the mountain was once under sea

Explanation:

beth432
That the mountain was once under the sea. Centuries ago, scholars puzzled over how seashells could wind up on the tops of mountains. Fossil seashells are now recognized as the remains of ancient sea floors raised to high altitudes by mountain building