$(a)$ Mention any two advantages of constructing dams.
$(b)$ Name a dam which was a subject of much opposition from locals as well as $NGOs$.
$(c)$ Mention any three problems which may arise due to the construction of large dams.

(N/A) Two advantages of constructing dams are:
$1$. They provide water for irrigation.
$2$. They are used for the generation of hydroelectricity.
$(b)$ The Sardar Sarovar Dam on the Narmada River or the Tehri Dam on the Ganga River are examples of dams that faced significant opposition from local communities and $NGOs$.
$(c)$ Three problems that may arise due to the construction of large dams are:
$1$. Social problems: Displacement of large numbers of peasants and tribals without adequate compensation or rehabilitation.
$2$. Environmental problems: Deforestation and loss of biodiversity due to the submergence of large forest areas.
$3$. Economic problems: Huge amounts of public money are spent without the generation of proportionate benefits.