Geography · Natural Disasters

Consider the following statements regarding the devastating Kerala floods of August 2018: 1. One of the largest flooded areas was adjacent to the coastal backwaters; areas adjoining these wetlands that are normally flood-free were extensively flooded. 2. Outlets to the sea (such as pozhis/sand banks and spillways) lacked the capacity to evacuate high flood flows of the rivers into the sea, aggravating the situation. 3. The flood situation in coastal regions was intensified by a perigean spring tide during August 11-15, 2018. 4. Sustained strong onshore winds resulted in abnormally high sea levels, which hampered river outflow into the sea. Which of the statements listed above are true?