Building a dam helps by blocking out water. Like in Canada Manitoba, the river there always floods, then overflows the city. So this summer they tried building a dam. In return, their city didn't flood, so that's the benefits of a dam.
flood control
irrigation
generating hydroelectric power
they built dams to keep the flooding out of their cities
There are many gravity dams constructed of compacted earth. High dams are generally concrete. All dams require a spillway to be safe. The spillway must be armored.
No, in fact, dams would collapse or crack in an event of an earthquake. Dams are built more to control floods, especially if they occur frequently and do destructive damage, just like why the Three Gorges Dam was built.
Often photographs are prohibited in areas such as dams because of the possibility of terrorist action. Pictures will be taken as a way of "casing" an area, in order to have a visual reference.
Flooding
Constructing dams have both merits and demerits. If merits are more, then the consruction should take place
One of the merits of multipurpose project of dams include source of energy and control over flooding. Demerits, on the other hand, include cost and potential outbreak.
Merits and de merits of chemical fertilizer?
merits of motorway? merits of motorway?
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engneering
it is charged on citizens so that they by the way of giving money they contribute something for their country and help govt in social welfare works such as reconstruuction of damage dams , giving subsidies to poorest section of socities etc.
dams
I am not certain that the described activity merits my attention. Do your merits outweigh your demerits?
= What are the Merits of joint family? =
hotel merits and demerits
merits and demerits of plastics