Coal and Iron Ore Are Complements in the Manufacture of Steel

question 108

Multiple Choice

Coal and iron ore are complements in the manufacture of steel. An increase in the price of coal would lead to

• A) an increase in the demand for iron ore as producers substitute more iron ore for coal in the production process.
• B) a decrease in the demand for iron ore as steel manufacturers reduce production of steel.
• C) an increase in the supply of iron ore as iron ore producers see an opportunity to expand their markets.
• D) no change in the demand for iron ore since the steel makers must use both iron ore and coal if they are to make steel.

---

Definitions:

Compound

A mixture formed by chemically joining two or more elements.

N,N-Diethylbutanamide

An organic compound featuring a butanamide core where both hydrogens of the amide group are replaced with ethyl groups.

IUPAC Systematic Name

A standardized naming system for chemicals formulated by the International Union of Pure and Applied Chemistry (IUPAC) that provides a unique way to identify a chemical substance.

N-Methyl-2-Ethyl-5-Methyloctanamide

An organic compound with a specific arrangement of methyl, ethyl groups, and an amide functional group, indicating a complex molecular structure.