Solve the questions?????? please

Dear Student,

The solution/s to your Q7 has been provided below:

7.
a) 1 nanosecond = 10^-9 seconds
b) $1 \mu s = {10}^{-6}s$
c) 1 giga second = 10⁹ s
d) $1\times {10}^{-6}m=1\mu$
e) $1 year=365\times 24\times 3600=31536000 s$

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