(b) 1
(c) 34.765 x 10^-4
(d) 2.56 x 10^2
Explanation:
Scientific notation is a way of expressing numbers that are too big or too small to be conveniently written in decimal form.
In this case, the scientific notation of 00.0602 will be 6 X 10⁻⁴
1 , 34.765 x 10⁻⁴ and 2.56 x 10² are already in scientific notation form.