2. a) how many milliseconds (ms) are in 1 second? 1. b) how many microseconds (μs) are in 1 second? 2. c) how many nanoseconds (ns) are in 1 millisecond? 3. d) how many microseconds are in 1 millisecond? 4. e) how many nanoseconds are in 1 microsecond? 5. f) how many kilobytes (kb) are in 1 gigabyte (gb)? 6. g) how many kilobytes are in 1 megabyte (mb)? 7. h) how many megabytes are in 1 gigabyte? 8. i) how many bytes are in 20 megabytes? 9. j) how many kilobytes are in 2 gigabytes?