alleryTen years together form which unit of time?
AA century
BA millennium
CAn era
DA decade
Answer & Solution
Correct answer: D. A decade
1. Recall the idea: How Is Time Measured in History?.
2. The source says: "a decade (a period of ten years)".
3. A decade is correct. 100 years is a century and 1,000 years is a millennium.
_Source: NCERT Class 6 Exploring Society: India and Beyond, Ch 4 Timeline and Sources of History, "How Is Time Measured in History?"_
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