Предмет: Окружающий мир, автор: Аноним

О каком полезном ископаемом идёт речь : в нём часто встречаются раковины разнообразной формы и величины потом что он образовался на дне морей и океанов из раковины и скелетов морских животных используют его в строительстве , а также как удобрение

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Автор ответа: FidKate

Это известняк.Часто используемая руда,в качестве строительства.

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