0.20008 kilometers has the most significant figures; option C
What are significant figures in calculations?
Significant figures in calculations or mathematical expressions are the non-zero numbers that occur after or before a decimal point or zero numbers that occur between non-zero numbers.
Significant figures are used in approximations in order to make numbers approximate values.
Considering the given options:
0.000342 grams = 3 significant figures
150 liters = 2 significant figures
0.20008 kilometers = 5 significant figures
1.5 × 104 light years = 2 significant figures
Therefore, 0.20008 kilometers has the most significant figures.
Learn more about significant figures at: https://brainly.com/question/24491627
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