What is the relationship between ionic bonds and cleavage? a) ionic bonds are very strong, so ionic bonded rocks do not have cleavage b) ionic bonds are weak, so ionic bonded minerals always break into irregular pieces c) ionic bonds are weak, so predictable cleavage occurs where ionic bonds break easily d) ionic bonds are strong, so the mineral only shows cleavage where there isn't an ionic bond

Why would the crystals in an intrusive igneous rock be larger than the crystals in a chemical sedimentary rock? a. intrusive rocks form beneath the earth's surface, so they cool very slowly, which produces larger crystals. b. chemical sedimentary rocks form from dissolved substances on the earth's surface with very high heat and cool very slowly, which produces smaller crystals. c. chemical sedimentary rocks and intrusive rocks have crystals of the same size. o d. chemical sedimentary rocks form deep in the earth, so they cool slower, which produces small crystals. € read question correct:

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Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.