Answer:
Primary memory is directly accessible by Processor/CPU. Secondary memory is not directly accessible by the CPU. ... The memory devices used for primary memory are semiconductor memories. The secondary memory devices are magnetic and optical memories
00110001 00110100 00110000
The chemical energy in food is transformed into mechanical energy through a process called respiration. This isn't really a computers and technology question though. Try Biology next time.
I think it is WAN (Wide Area Network).