Correct option is B
The correct answer is :(b), b, c and d
About 15% (3/20) of land area of India is vulnerable to landslide hazard.
Landslides and avalanches are among the major hydro-geological hazards that affect large parts of India besides the Himalayas, the Northeastern hill ranges, the Western Ghats, the Nilgiris, the Eastern Ghats, and the Vindhyan, in that order, covering about 15 % of the landmass.
Tuticorin NOT lies in greater seismic sensitivity zone as compared to Mumbai and Kolkata.
Super cyclone of 29TH OCT 1994 resulted into great loss of life and property in Odisha
Information booster:
National flood commission
1. The National Flood Commission estimated that the total area vulnerable to floods in 1980 was around 40 million hectares.
2. The areas where protection works failed were then subtracted from the total. It is, however, a flawed methodology and National Flood Commission itself acknowledges it.
3. It is clear that while the maximum area flooded in any one year may broadly indicate the degree of the flood problem in a state, it does not strictly indicate the area liable to floods as different areas may be flooded in different years.
4. There is another problem. The very definition of flood-prone area does not reflect the effectiveness of the flood management works undertaken.
5. The National Flood Commission report also recognised the need for timely evaluation of flood management projects.
6. It entrusted state irrigation and flood control departments, CWC, Ganga Flood Control Commission and the Brahmaputra Board with the task of adopting or discarding them on the basis of their performance. But this has not been the case.
7. Even when flood management projects are evaluated, the reports are not credible.
8. Moreover, the evaluation is generally done by departments that undertake flood-control projects. A major problem is the inaction on recommendations of evaluation reports.
9. For instance, in 1978, RBA asked the programme evaluation organisation of the erstwhile Planning Commission to review the Kosi embankments.
10. The study, published in 1979, concluded that embankments had, in fact, enhanced the flood problem. But the embankments were raised by two metres in 1987-88, and remain aggravate the flood situation in Bihar.