1). Match the following:
A. Mantle |
1. Heavy rocks of lithosphere |
B. Sima |
2. Layer below earth's crust |
C. Sial |
3. Light rocks of lithosphere |
D. Bill |
4. Small peninsular |
Below options are given in A B C D order
A). 3 1 4 2 |
B). 4 3 2 1 |
C). 2 1 3 4 |
D). 1 2 3 4 |
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2). The term 'rock' comprises :
A). an aggregate of minerals, usually two or more |
B). a naturally occurring mass of solid, inorganic or organic |
C). forming a fir and coherent mass of the earth's crust |
D). all of the above |
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3). In which type of rocks are coal and petroleum found?
A). Granite |
B). Igneous |
C). Metamorphic |
D). Sedimentary |
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4). Which metal is more abundant in the earth's rust?
A). Calcium |
B). Magnesium |
C). Aluminium |
D). Iron |
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5). Molten rock below the surface of the earth is called :
A). Basalt |
B). Laccolith |
C). Lava |
D). Magma |
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6). The Himalayas are formed due to :
A). internal pressure of two large land forms |
B). faulting of the earth's crust |
C). folding of the earth's crust |
D). folding of the geo-syncline named Tethys. |
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7). What is Weathering?
A). Removal of earth's material by river action |
B). Removal of earth's material by wind action |
C). Breaking up and disintegration of rocks |
D). Hardening up of rocks due to weather conditions |
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8). Which of the following is a chemical weathering process?
A). Frost Action |
B). Hydraulic Action |
C). Oxidation |
D). Thermal Expansion |
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9). Which of the following predominantly acts as the agent of chemical erosion of soil?
A). Glacier |
B). Sea wave |
C). Underground water |
D). Wind |
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10). The most ideal conditions for the chemical weathering are found in :
A). cold and dry regions |
B). cold and humid regions |
C). hot and dry regions |
D). hot and humid regions |
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