Below are given names of a few lakes of India. Group them under two categories natural and created by human beings.
(a) Wular (b) Dal (c) Nainital (d) Bhimtal (e) Gobind Sagar (f) Loktak (g) Barapani (h) Chilka (i) Sambhar (j) Rana Partap Sagar (k) Nizam Sagar (l) Pulicat (m) Nagarjuna Sagar (n) HiraKund.
(i) Natural lakes: (a) Wular (b) Dal (c) Nainital (d) Bhimtal (f) Loktak (g) Barapani (h) Chilka (i) Sambhar (l) Pulicat.
(ii) Man-made lakes: (e) Gobind Sagar (j) Rana Partap Sagar (l) Nizam Sagar (n) Nagarjuna Sagar (n) Hira Kund.