| 1. | In India, the Archaeans and the associated Dharwarian rocks cover nearly ......... area of the peninsula. ? | |
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10%
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30%
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66%
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95%
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Report Question| 2. | The solid materials (or pyroclasts) of different sizes are thrown out by 'volcanoes at the time of their eruptions. Pyroclasts consist of: ? | |
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volcanic blocks, lapilli, & volcanic dust
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volcanic dust & lapilli
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lapilli
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none of the above
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| 3. | Rocks formed from molten magma are known as: ? | |
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sedimentary rocks
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igneous rocks
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metamorphic rocks
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none of these
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| 4. | Stones used for rubble masonry must be: ? | |
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soft
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hard
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high
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heavy
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| 5. | Hardness & specific gr. of Pyrite lies between: ? | |
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6 - 6.50 & 4.90 - 5.20 respectively
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6 - 6.50 & 3.90 - 4.20 respectively
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6 - 6.50 & 2.90 - 3.20 respectively
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none of the above
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| 6. | Dunes are: ? | |
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wind-deposits made up primarily of sand grade particles
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aeolian deposits
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all the above
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none of the above
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| 7. | Which of the following instruments may be used for the determination of the sp. gr. of minerals in geological laboratories: ? | |
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Walker's steel yard balance
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The beam balance
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Jolly's spring balance
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all the above
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| 8. | When pure Limestone simply recrystallises during the process of metamorphisms without any new mineral formation, the resulting rock is: ? | |
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Dolomite
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Anorthite
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Marble
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none of the above
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| 9. | Lithosphere consists of: ? | |
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Atmosphere & crust
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crust, mantle, & core
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all the above
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none of the above
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| 10. | Shingle is: ? | |
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decomposed Laterite
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obtained by crushing Granite
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Water bound pebbles
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air weathered rock
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