Which one of the following is an artificial lake ?

Provides a general definition: 'A lake is a natural depression filled with water,' and notes lakes have different origins.

A student could use this rule to ask whether Kodaikanal Lake occupies a natural basin (natural origin) or was created by human action (artificial).

States explicitly that India has many artificial (man-made) lakes and gives an historical example (Sudarshan Lake).

A student could use this pattern to treat Kodaikanal Lake as plausibly artificial and then look for local evidence (presence of a dam, reservoir function, or historical construction date).

Explains how man-made lakes are commonly created (erecting a dam across a river valley to form reservoirs) and gives examples.

A student could check whether Kodaikanal Lake has a dammed inlet/outlet or is described as a reservoir to infer artificial origin.

Gives a concrete South Indian example (Veeranam Lake) of a lake functioning as a water reservoir supplying a city, implying human-managed/artificial usage.

A student could compare Kodaikanal Lake to Veeranam: if Kodaikanal serves as a constructed reservoir for water supply, that supports it being artificial.

Shows that some well-known Indian lakes (Wular) have specific natural origins (tectonic), illustrating the contrast between natural origin types and man-made lakes.

A student could seek statements or geological/photographic evidence identifying Kodaikanal Lake's origin (tectonic/glacial vs. constructed) to decide which category fits.