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Write the following numbers in scientific notation:
 
(i) 467800000000 = i×ii
 
(ii) 0.000001972 = i×ii
 
(iii) 1642.398 = i×ii
 
(iv) Earth's volume is about 1,083,000,000,000 cubic kilometres = i×ii
 
(v) If you fill a bucket with dirt, the portion of the whole Earth that is in the bucket will be 0.0000000000000000000000016 kg = i×ii