🎴 Flashcard Mode
Human Biology & Physical Sciences Quiz
Card1 / 20
Mastered0
Review0
QuestionClick to flip
Light year is a unit of
AnswerClick to flip back
A
distance
💡 Explanation:
A light year is the distance light travels in one vacuum year - approximately 9.46 trillion kilometers. It measures distance, not time (despite the word 'year'). Options A, C, and D are incorrect.