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VenusRetrograde
To solve, lets convert the number so that they both have the similar exponents.

[tex]2*10^{-24} =20000*10^{-28} [/tex]

in comparing 20,000*10^-28 and 9*10^-28, we can see that one is nearly 2,000 times bigger than the other

20,000/9=2222

Answer= C

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