地质英语 在线考试 答题题目
1.Igneous rocks are produced primarily by the deposition and consolidation of surface materials such as sand and mud.B A.true; B.false 2.Which statement is NOT correct?A A.metamorphic rocks always melt and become magma B.igneous rocks may undergo metamorphism C.sedimentary rocks can be weathered D.when magma crystallizes, it becomes igneous rock
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