Answer:
The Dam structure built a across a river to retain the water.Dams are provide the water of human for use industrial area.
Step-by-step explanation:
Dams are built to the use of human and lands , industrial area supply process.They are used to the amount of available water for hydroelectric power.
Dams can provide a lake such activities as swimming,fishing and boating.
Dams are built in structures to the power station, tunnels and pipelines,to stored the water.
Dams are may be bring have benefits related power production and agricultural development growth.Concrete is used to built the Dam massive gravity Dam the high quality Concrete is used in the built the Dam.