NCERT Class 11 India Physical Environment Chapter 6 “Natural Hazards and Disasters” Solution |

Natural Hazards and Disasters

EXERCISES

1. Choose the right answer from the four alternatives given below.

(i) Which one of the following states of India experiences floods frequently?

(a) Bihar (c) Assam

(b) West Bengal (d) Uttar Pradesh

Answer:

(ii) In which one of the following districts of Uttaranchal did Malpa Landslide disaster take place?

(a) Bageshwar (c) Almora

(b) Champawat (d) Pithoragarh

Answer:

(iii) Which one of the following states receives floods in the winter months?

(a) Assam (c) Kerala

(b) West Bengal (d) Tamil Nadu

Answer:

(iv) In which of the following rivers is the Majuli River Island situated?

(a) Ganga (c) Godavari

(b) Brahmaputra (d) Indus

Answer:

(v) Under which type of natural hazards do blizzards come?

(a) Atmospheric (c) Terrestrial

(b) Aquatic (d) Biological

Answer:

2. Answer the following questions in less than 30 words.

(i) When can a hazard become a disaster?

Answer:

(ii) Why are there more earthquakes in the Himalayas and in the north-eastern region of India?

Answer:

(iii) What are the basic requirements for the formation of a cyclone?

Answer:

(vi) How are the floods in Eastern India different from the ones in Western India?

Answer:

(v) Why are there more droughts in Central and Western India?

Answer:

3. Answer the following questions in not more than 125 words.

(i) Identify the Landslide-prone regions of India and suggest some measures to mitigate the disasters caused by these.

Answer:

(ii) What is vulnerability? Divide India into natural disaster vulnerability zones based on droughts and suggest some mitigation measures.

Answer:

(iii) When can developmental activities become the cause of disasters?

Project/Activity

Prepare a project report on any one of the topics given below.

(i) Malpa Landslide (v) Tehri Dam/Sardar Sarovar

(ii) Tsunami (vi) Bhuj/Latur Earthquakes

(iii) Odisha and Gujarat Cyclones (vii) Life in a delta/riverine island

(iv) Inter-linking of rivers (viii) Prepare a model of rooftop rainwater harvesting