Which of the following statements are true? 1. Natural disasters cause maximum damage in developing countries. 2. Bhopal gas tragedy was man-made. 3. India is a disaster-free country. 4. Mangroves reduce the impact of cyclones. Select the correct answer from the codes given below:

Note: UPPSC deleted this question in its final answer key. (The Hindi paper said 'India is a disaster-prone country', contradicting the English.) As stated here, 1, 2 and 4 are true: disasters hit developing countries hardest, Bhopal (1984) was an industrial (man-made) disaster, and mangroves buffer cyclone surges. Statement 3 is false; India is highly disaster-prone.