The term 'West Texas Intermediate', sometimes found in news, refers to a grade of

Lists major import commodities separately as 'Petroleum, crude-oil and petroleum products' and 'Gold and silver', implying crude oil and bullion are distinct commodity categories.

A student could use a world commodities map or commodity-classification knowledge to check whether 'West Texas Intermediate' is listed under crude oil grades rather than precious metals.

Refers to an 'Indian Bullion Spot Exchange' and discussion of an international bullion exchange, showing 'bullion' is used for traded precious metals in dedicated venues.

One could check typical products traded on bullion exchanges (gold, silver) to see if WTI appears among them or instead appears on petroleum exchanges.

Explains the concept of 'grades' applied to mineral commodities (iron ore grades), demonstrating that 'grade' is a common term for classifying non-precious and precious mineral/products.

A student could apply this pattern to ask whether WTI is named as a 'grade' in lists of oil grades (parallel to iron-ore grades) or in lists of bullion grades.

Discusses 'bullion' historically as silver/metal currency that flows in trade, reinforcing that 'bullion' refers to metals like gold/silver, not to petroleum products.

Using the definition that bullion = precious metals, a student could cross-check whether WTI is associated with precious-metal terminology or with oil terminology.

Describes gold and silver as specific intermediate commodities/monetary metals, illustrating that bullion commonly refers to those metals rather than other commodities.

A student could contrast the typical use of 'bullion' for gold/silver with known commodity names (like WTI) to see which commodity class WTI fits.

Shows that mineral products (iron ore) are explicitly described in terms of 'grades' and named categories (hematite, magnetite).

A student could use this pattern to ask if 'West Texas Intermediate' follows the same 'grade name' convention used for ores and thus might be a grade label for some material.

Gives a clear classification of minerals into categories (metallic vs non-metallic), implying that elements/minerals are commonly organized and labeled by type.

A student could check whether 'rare earths' are listed as a mineral category and whether naming conventions for those categories include geographic/grade terms like 'West Texas Intermediate'.

Defines 'mineral ore' as metals in their raw state, linking ores/elements to commodity naming and classification.

A student could compare commodity naming for ores/metals to the phrase 'West Texas Intermediate' to see if similar terms are used for elemental grades.

Describes the set of chemical elements and their classification (metals, non-metals, metalloids), indicating that 'rare earths' would be among recognized elements/groups.

A student could use this to verify whether names like 'West Texas Intermediate' appear among standard element or element-group naming conventions.

Mentions Texas as a geographic region (coastal margins from Florida to Texas), showing that geographic names are used in these texts to label places/regions.

A student might consider that 'West Texas' in a term could be a geographic qualifier and check if such geographic qualifiers are used in naming grades of minerals or other commodities.

This snippet shows that minerals (iron ore) are commonly classified into named grades (hematite, magnetite) based on purity and composition.

A student could use this general pattern (commodities often have named grades) and then check whether 'West Texas Intermediate' follows naming patterns used for mineral/ore grades or instead matches naming used in another commodity.

Describes uranium as a specific heavy mineral with distinct physical properties and that it is refined, implying commodity-specific terminology is used for uranium products.

A student could combine this with outside knowledge of commodity naming to ask whether WTI is used for refined uranium products or appears in other commodity contexts (e.g., oil).

States that nuclear energy is produced from uranium and thorium and lists atomic minerals as a separate energy commodity class.

A student could contrast naming conventions across energy commodities (nuclear minerals vs. petroleum products) to assess whether a geographic name like 'West Texas Intermediate' is more plausibly linked to petroleum than uranium.