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The mass of the earth, 5,970,000,000,000,000,000,000,000 kg, is:
A5.97 x 10^24 kg
B5.97 x 10^22 kg
C5.97 x 10^26 kg
D5.97 x 10^20 kg
Answer & Solution
Correct answer: A. 5.97 x 10^24 kg
1. Standard form leaves one digit before the decimal point.
2. The point then moves twenty four places.
3. The mass of earth is 5.97 x 10^24 kg.
4. So the answer is 5.97 x 10^24 kg.
_Source: NCERT Class 8 Mathematics, Ch 10 'Exponents and Powers'_
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