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| The most abundant chemical element in the CRUST is: |
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| Among the different major chemical elements which make up the CRUST, which one has its ions with negative charges: |
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| Which one among the following common crustal chemical elements has the largest ionic radius: |
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| Which one among the following common crustal chemical elements has more than one type of ionic charge? |
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| Isotopes of a given chemical element are: |
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| atoms with different numbers of neutron |
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| Isotopes of a given chemical element in a mineral have |
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| Which one among the following elements has all its isotopes that are stable (skip) |
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| uranium; potassium; carbon; oxygen (skip) |
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| Minerals are generally classified into groups based on their |
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| which one of the following minerals could be a source of carbon dioxide to the atmosphere |
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| the following is an oxide mineral |
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| the most common iron-rich mineral in soils is |
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| the following is the most common silicate mineral in soils |
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| the following mineral is a source of phosphorous and is found in animal teeth and bones |
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| which one of the following minerals in soils has its origin primarily from the alteration of feldspar |
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| which one of the following minerals appears to be not present in lunar rocks, suggesting that the moon is largely devoid of water |
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| all physical properties of a given mineral are a reflection of |
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| internal arrangement of the chemical constituents |
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| A solid is not considered to be a mineral unless |
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| its chemical constituents are arranged in a definite order |
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| the following mineral is essentially of hydrous aluminum silicate composition |
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| which one of the following is a common potassium-bearing mineral |
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| many continue to maintain that radioactive waste could be safely stored in salt beds. These geological salt beds, known as evaporative deposits, consist of |
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| the most abundant mineral in the CRUST is |
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| The following is NOT an iron-magnesium bearing mineral |
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| The following mineral by its presence in water can cause the water to be acidic |
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| the following mineral can decrease the acidity of waters |
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| the following mineral has a very high swelling ability |
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| the following mineral suggests that the environment in which it formed was deficient in oxygen |
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| which one of the following minerals is hydrous in composition |
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| REplacement or substitution of a chemical element by another in the structure of a mineral could be possible provided |
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| the ions of the elements involved are nearly similar in size and charge |
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| coral reefs consist primarily of |
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| diatoms, grass blades, and several other biological materials precipitate the following mineral |
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| an example of a sulfide mineral is |
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| the following is a carbonate mineral |
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| red color of ruby, whose composition is largely aluminum oxide, is due to the presence of a small amount, estimated to be less than 1% of |
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| Some chemical compounds can occur in nature in different forms and hence produce distinctly different minerals. The following pair illustrates such an occurance |
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| which one of the following minerals has natural occurrence with a large total surface area, enabling the mineral to be highly reactive with its immediate environment |
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