Coal and gasoline are examples of _____.A.fossil fuelsB.combustion reactionsC.biofuelsD.chemicals

Break Down the Problem

1. Identify the categories provided in the options.
2. Determine what coal and gasoline are classified as.

Relevant Concepts

• Fossil Fuels: Natural substances formed from the decomposition of prehistoric organisms.
• Combustion Reactions: Chemical reactions that occur when a substance combines with oxygen to produce heat.
• Biofuels: Fuels derived from biological materials.
• Chemicals: Substances composed of a defined chemical composition.

Analysis and Detail

1. Fossil Fuels: Both coal and gasoline are derived from ancient organic materials, making this category relevant.
2. Combustion Reactions: While both can undergo combustion, this specifically refers to a type of reaction, not the classification.
3. Biofuels: Derived from living organisms, which does not include coal or gasoline.
4. Chemicals: This is a broad category that encompasses many substances, including fossil fuels.

Verify and Summarize

After evaluating each option, it is clear that coal and gasoline fit the definition of fossil fuels.

Final Answer

A. fossil fuels