Below are given names of a few lakes of India. Group those under two categories - natural and created by human beings.
(a) Wular (b) Dal
(c) Nainital (d) Bhimtal
(e) Govind Sagar (f) Loktak
(g) Barapani (h) Chilika
(i) Sambhar (j) Rana Pratap Sagar
(k) Nizam Sagar (l) Pulicat
(m) Nagarjuna Sagar (n) Hirakund.
