I would say C. Land. The Earth's surface is 71% water. So the remaining would have to be land.
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.
A. Women marry later and have fewer children, usually this is not the case, the women will marry earlier and have lots of children in places where they are not educated.
