36. Which of the following is a wetland formed by the overflow of a river?
a) Delta
b) Estuary
c) Lagoon
d) Tidal flat
Answer: b) Estuary
37. Which of the following is not a Ramsar site in India?
a) Keoladeo National Park
b) Chilika Lake
c) Loktak Lake
d) Pulicat Lake
Answer: d) Pulicat Lake
38. Which of the following mangrove species is commonly found in the Sundarbans?
a) Avicennia marina
b) Rhizophora mucronata
c) Sonneratia caseolaris
d) Ceriops tagal
Answer: b) Rhizophora mucronata
39. Which of the following is not a coral reef in India?
a) Gulf of Mannar
b) Laccadive Islands
c) Gulf of Kutch
d) Rann of Kutch
Answer: d) Rann of Kutch
40. Which of the following is a freshwater lake in Himachal Pradesh?
a) Dal Lake
b) Chilika Lake
c) Renuka Lake
d) Pulicat Lake
Answer: c) Renuka Lake