Question

Pls help me my good friends ​​

Answer 1

$mass \: of \: earth \: is \\ 5.98 \times {10}^{24} kg$

Just count number of digits before the first digit that becomes the power of 10

Similarly,

$mass \: of \: sun \: is \\ 1.989 \times {10}^{30} kg$

Hope this helps pal