Answer:
I'd say 1 is the most viable answer
I think it's C i'm sorry if i'm wrong.
I would either say a smartphone or gaming console because that’s where people spend allot of time at, and entertain themselves with. People also communicate with each other through gaming headsets and text messages.
Answer:
Hydraulic engineering is just a part of civil engineering. It is based on flow and conveyance of fluids, mainly water and sewage. It can be seen as an application of fluid mechanics for taking care of problems arising during storage, transport, regulation, measurement and use of water. This is needed while designing dams, canals, or cooling water facilities for thermal power plants.