1.

A The mass of the Earth is 5,976,000,000, 000,000,000,000,000 kg. How is the mass of Earth expressed in standard form?

A.  \[5.976\times {{10}^{24}}\,kg\]  
B.  \[5.976\times {{10}^{21}}\,kg\]
C.  \[5976\times {{10}^{21}}\,kg\]
D.  \[59.76\times {{10}^{23}}\,kg\]
Answer» B.  \[5.976\times {{10}^{21}}\,kg\]


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