Q.Read the following statements regarding the ecological concept of an 'Ecotone': (a) An ecotone is a transition area or a zone of tension between two or more diverse biological communities or ecosystems. (b) Mangrove forests, estuaries, and grasslands are prime examples of naturally occurring ecotones. (c) The 'Edge Effect' refers to a phenomenon where the population density and species diversity are significantly lower in the ecotone compared to the adjacent ecosystems. Which of the statements given above is/are incorrect?