(1) The nonliving material with uniform structure has been Mineral. Thus, option A is correct.
(2) The rock formed by the cooling of volcanic eruption and lava has been the igneous rock.
(3) A sedimentary rock can become a metamorphic rock by exposure to high heat and great pressure.
The rock and minerals are the nonliving compositions of the nature that are rich source of many fuels, and natural gases.
The varying form of rocks are present in the nature, and are converted from one form to another.
(1) Rocks have been defined as the material with nonuniform structure and composition. Rocks are the rich mineral source. They are the uniform structure throughout the material.
Thus, the nonliving material with uniform structure has been Mineral. Thus, option A is correct.
(2) The rock has been converted from one form to another in the rock cycle. The sedimentary rocks are formed by the deposits from the sea. The breakdown of sedimentary rock result in the metamorphic rocks.
The metamorphic rocks are deep inside the crust.
The rock formed by the cooling of volcanic eruption and lava has been the igneous rock.
(3) The sedimentary rocks are converted to the metamorphic rocks by the application of high heat and pressure to the sediments.
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