Geography ยท Science General
Rocks and Earth Materials
1,291 Questions
Study geographical questions centered around rocks, minerals, and earth materials. The focus is on the formation and identification of igneous, sedimentary, and metamorphic rocks. These earth science topics are commonly tested in civil services and state level examinations.
Igneous rocksSedimentary rocksMetamorphic processEarth materialsGeomorphic symbols
Rocks and Earth Materials Questions
Which of the following is NOT a common application of X-ray diffraction (XRD) in geochemistry?
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Identification of minerals in rocks and sediments
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Analysis of clay minerals
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Dating of geological materials
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Analysis of organic compounds
D
Correct answer
Explanation
XRD is not typically used for the analysis of organic compounds, as it is primarily employed for the identification and characterization of crystalline materials.
Which of the following is NOT a type of rock?
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Igneous
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Sedimentary
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Metamorphic
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Fossil
D
Correct answer
Explanation
Fossils are the preserved remains or traces of animals, plants, and other organisms from the past.
Which of the following is NOT a common method for collecting geochemical data?
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X-ray fluorescence (XRF)
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Inductively coupled plasma mass spectrometry (ICP-MS)
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Gas chromatography-mass spectrometry (GC-MS)
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Atomic absorption spectroscopy (AAS)
C
Correct answer
Explanation
Gas chromatography-mass spectrometry (GC-MS) is commonly used for analyzing organic compounds, while XRF, ICP-MS, and AAS are used for analyzing inorganic elements.
Which of the following is NOT a common type of geochemical data?
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Elemental data
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Isotopic data
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Mineralogical data
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Biological data
D
Correct answer
Explanation
Biological data is not typically considered a type of geochemical data, as it focuses on living organisms rather than the chemical composition of materials.
Which of the following is NOT a common type of geochemical map?
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Element distribution map
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Isotope distribution map
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Mineralogical map
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Topographic map
D
Correct answer
Explanation
Topographic maps are not typically considered a type of geochemical map, as they focus on the physical features of the Earth's surface rather than the chemical composition of materials.
Which of the following is NOT a common type of geochemical database?
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Elemental database
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Isotopic database
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Mineralogical database
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Biological database
D
Correct answer
Explanation
Biological databases are not typically considered a type of geochemical database, as they focus on living organisms rather than the chemical composition of materials.
What is the most common type of meteorite depicted on stamps?
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Stony
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Iron
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Stony-iron
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Martian
A
Correct answer
Explanation
Stony meteorites are the most common type of meteorite depicted on stamps.
Which geochemical mapping technique involves measuring the concentration of elements in rocks?
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Soil geochemistry
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Rock geochemistry
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Stream sediment geochemistry
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Water geochemistry
B
Correct answer
Explanation
Rock geochemistry involves collecting and analyzing rock samples to determine the concentration of elements. This technique is commonly used in mineral exploration to identify areas with high mineral potential.
Which of the following geological processes is responsible for the formation of mountains?
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Folding
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Faulting
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Volcanism
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All of the above
D
Correct answer
Explanation
Mountains can be formed by a variety of geological processes, including folding, faulting, and volcanism. Folding occurs when layers of rock are pushed together, causing them to buckle and form mountains. Faulting occurs when rocks break and move along a fault line, creating a steep cliff or escarpment. Volcanism occurs when magma from the Earth's interior erupts onto the surface, building up layers of rock and forming mountains.
Which of the following is NOT one of the Five Elements?
D
Correct answer
Explanation
Air is not one of the Five Elements in Chinese philosophy.
What is the most abundant mineral in the Earth's crust?
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Quartz
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Feldspar
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Calcite
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Olivine
A
Correct answer
Explanation
Quartz is the most abundant mineral in the Earth's crust, making up about 12% of its mass.
What is the name of the mineral that is commonly used in the production of cement?
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Limestone
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Sandstone
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Shale
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Granite
A
Correct answer
Explanation
Limestone is a sedimentary rock composed primarily of calcium carbonate. It is commonly used in the production of cement, as well as in the construction and agriculture industries.
Which of the following is NOT a type of sedimentary rock formed from the accumulation and compaction of organic matter?
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Coal
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Limestone
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Oil shale
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Peat
B
Correct answer
Explanation
Limestone is not formed from the accumulation and compaction of organic matter. It is formed from the accumulation and compaction of calcium carbonate.
Which of the following is NOT a type of igneous rock formed from the cooling and solidification of molten rock?
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Basalt
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Granite
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Sandstone
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Rhyolite
C
Correct answer
Explanation
Sandstone is not an igneous rock. It is a sedimentary rock formed from the accumulation and compaction of sand grains.
Which of the following is NOT a type of metamorphic rock formed from the alteration of existing rocks under high temperature and pressure?
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Slate
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Marble
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Limestone
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Gneiss
C
Correct answer
Explanation
Limestone is not a metamorphic rock. It is a sedimentary rock formed from the accumulation and compaction of calcium carbonate.