1) A stone which is used to sooth skin is glassy volcanic rock formed from lava froth is a. obsidian b. pumice c. basalt d. granite
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2) Rock which is composed of sand-sized pallets of calcium carbonate formed in shallow water is a. shelly limestone b. chalk c. oolitic limestone d. all of them
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3) Metamorphic rocks are usually a. morphed b. compacted c. layered d. clustered
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4) Gneiss has been transformed from a. sandstone b. limestone c. igneous rock d. shale
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5) Iron-rich igneous rocks are denser than rocks which are rich in a. silica b. Sulphur c. cobalt d. calcium
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6) A glassy rock having no crystals formed due to less time given is called a. obsidian b. pumice c. basalt d. granite
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7) The rocks which are non-interlocking and porous are a. sedimentary rocks b. metamorphic rocks c. igneous rocks d. morphic rocks
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8) After eruption of lava a type of rock is obtained called a. lava rock b. magma rock c. volcanic rock d. molten rock
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9) Magma which flows out to the surface of Earth during a volcanic eruption is called a. lava b. magma c. volcano d. molten rock
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10) Metamorphic rocks become magma on melting at high a. temperatures b. pressures c. densities d. energies
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11) Molten rock inside Earth's crust is called a. lava b. magma c. volcano d. molten rock
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12) The transformed rocks are called a. sedimentary rocks b. metamorphic rocks c. igneous rocks d. morphic rocks
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13) Quartzite is transformed from a. sandstone b. limestone c. igneous rock d. shale
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14) Fine grained calcium carbonate layer of rock formed from micro-organisms is a. Shelly limestone b. chalk c. oolitic limestone d. all of them
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15) A comparison between metamorphic rock and its parent rock will yield different a. mineral content b. texture c. structure d. all of them
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16) A which is mainly composed of fossils cemented by calcium carbonate is a. Shelly limestone b. chalk c. oolitic limestone d. all of them
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17) A comparison between marble and limestone shows marble is more a. vulnerable b. harder c. weaker d. smaller
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18) Ashes and rock fragments cool and settle on earth's surface can form volcanic rock like a. tuff b. pumice c. obsidian d. granite
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19) Iron-rich igneous rock includes a. granite b. obsidian c. basalt d. all of them
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