Which adjective indicates something that covers a span of 100 years?OptionsQuadrennialMillennialCentennialDecennial

Step 1: Identify the Options

• Quadrennial: Referring to something that occurs every four years.
• Millennial: Pertaining to a period of a thousand years or a generation.
• Centennial: Relating to a period of one hundred years.
• Decennial: Referring to something that occurs every ten years.

Step 2: Define the Terms

• From the definitions, identify which adjective specifically refers to a span of 100 years.

Step 3: Analyze the Choices

• Centennial directly indicates a period of one hundred years.
• The other options denote different time frames (quadrennial, decennial, and millennial).

Final Answer

The adjective that indicates something that covers a span of 100 years is Centennial.