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21 August, 04:53

37. Which statement about inorganic rocks is true?

(1) all inorganic rocks are formed from other

rocks

(2) all inorganic rocks except igneous rocks are

formed from other rocks

(3) all inorganic rocks except metamorphic rocks

are formed from other rocks

(4) all inorganic rocks except igneous and

metamorphic rocks are formed from other

rocks

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Answers (2)
  1. 21 August, 04:59
    0
    Answer: The correct answer is : (2) all inorganic rocks except igneous rocks are formed from other rocks

    Explanation: Igneous rocks are formed by the solidification of magma, the process is slow if it is in the crust and fast if it is on the surface.

    Sedimentary rocks are formed on the surface of the earth by processes of erosion and alteration of pre-existing rocks.

    Metamorphic rocks have been formed by the evolution of another previous rock due to the environment to which it is subjected that may be hotter, colder or of a different pressure.
  2. 21 August, 05:07
    0
    (2) all inorganic rocks except igneous rocks are formed from other rock

    Explanation:

    The rocks that were first to form in the earth were the primary igneous rocks as the name ignis related to fire and thus are one that is firmed by the earth interiors activities of tectonics and rest of the other rocks are a product of the rock cycle and inorganic rocks are made firm the other indirect sources.
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