Back صخر أساس Arabic Roca mare Catalan Undergrund Danish Anstehendes Gestein German Roca madre Spanish Aluspõhi Estonian Arroka ama Basque سنگ بستر Persian Kallioperä Finnish Roche-mère (pédologie) French
In geology, bedrock is solid rock that lies under loose material (regolith) within the crust of Earth or another terrestrial planet.
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