A ton is often a slang term for a hundred (eg in cricket) and so a ton has 2 zeros.
none
Eight zeros.
There are four zeros in 10 tons.
700,000,000 (eight zeros).
There are 8 zeros.
5,700,000,000 Eight zeros.
Eight.
Eight
Eight zeros in total... 200,000,000
None. 1 tonne has only one digit and that one digit is a 1.
12