Q1: Choose the right answer from the four alternatives given below.
(i) Which one of the following states of India experiences floods frequently?
(a) Bihar
(b) West Bengal
(c) Assam
(d) Uttar Pradesh
Ans: (c)
(ii) In which one of the following districts of Uttaranchal did Malpa Landslide
disaster take place?
(a) Bageshwar
(b) Champawat
(c) Almora
(d) Pithoragarh
Ans: (d)
(iii) Which one of the following states receives floods in the winter months?
(a) Assam
(b) West Bengal
(c) Kerala
(d) Tamil Nadu
Ans: (d)
(iv) In which of the following rivers is the Majuli River Island situated?
(a) Ganga
(b) Brahmaputra
(c) Godavari
(d) Indus
Ans: (b)
(v) Under which type of natural hazards do blizzards come?
(a) Atmospheric
(b) Aquatic
(c) Terrestrial
(d) Biological
Ans: (a)
Q2: Answer the following questions in less than 30 words.
(i) When can a hazard become a disaster?
Ans: A hazard can become a disaster when it becomes active. A disaster causes losses to property and life on a large scale.
(ii) Why are there more earthquakes in the Himalayas and in the north-eastern region of India?
Ans: The Indian plate is moving at a speed of one centimetre per year towards the north and northeastern direction and the movement of plates is being constantly obstructed by the Eurasian plate from the north. This result in accumulation of energy at different points of time. Excessive accumulation of energy results in building up of stress, which ultimately leads to the breaking up of the lock and the sudden release of energy causes earthquakes in the Himalayas and in the north-eastern region of India.
(iii) What are the basic requirements for the formation of a cyclone?
Ans: The basic requirements for the formation of a cyclone are:
(iv) How are the floods in Eastern India different from the ones in Western India?
Ans: The flood occur more in Eastern India as compared to Western India because of high rainfall in eastern India than western India. Also, the floods of eastern India are more disastrous in comparison to western India.
(v) Why are there more droughts in Central and Western India?
Ans: Central and Western India experiences less rainfall because the intensity of monsoon winds becomes weak as they reach in these areas.
Q3: 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.
Ans: The Landslide-prone regions of India are:
Some measures to mitigate the disasters are:
(ii) What is vulnerability? Divide India into natural disaster vulnerability zones based on droughts and suggest some mitigation measures.
Ans: Vulnerability means the risk of becoming a victim to a disaster.
Based on the severity of droughts, India is divided into the following regions:
Some mitigation measures are:
(iii) When can developmental activities become the cause of disasters?
Ans: Development has created many such problems whereby disasters occur. There are some activities carried by human beings that are directly responsible for disasters.
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1. What are natural hazards and disasters? |
2. How do natural hazards and disasters impact human lives? |
3. What are the factors that contribute to natural hazards and disasters? |
4. How can we mitigate the impact of natural hazards and disasters? |
5. What is the role of government and international organizations in managing natural hazards and disasters? |
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