- Understand the concept of natural hazards and disasters.
- Identify various types of natural disasters, including floods, droughts, earthquakes, tsunamis, cyclones, and landslides.
- Analyze the causes and consequences of natural disasters.
- Evaluate the management strategies for disaster preparedness and mitigation.
- Discuss the role of government and international cooperation in disaster management.
Natural Hazards and Disasters
CBSE Learning Objectives – Key Concepts & Skills You Must Know
CBSE Revision Notes & Quick Summary for Last-Minute Study
Natural Hazards and Disasters
Overview
This chapter deals with various natural hazards and disasters, including:
- Floods and droughts
- Earthquakes and tsunamis
- Cyclones
- Landslides
Definitions
- Disaster: A catastrophe affecting an area, arising from natural or man-made causes, resulting in substantial loss of life or damage to the environment.
Types of Natural Disasters
Atmospheric
- Blizzards
- Thunderstorms
- Tornadoes
- Tropical Cyclones
- Heat Waves
Terrestrial
- Earthquakes
- Landslides
- Volcanic Eruptions
Aquatic
- Floods
- Tsunamis
Disaster Management Stages
- Pre-disaster Management: Involves data generation, vulnerability mapping, and public awareness.
- During Disasters: Focuses on rescue, relief operations, and emergency supplies.
- Post-disaster Operations: Involves rehabilitation, recovery, and capacity-building.
Examples of Natural Disasters in India
- Earthquakes: Highly destructive and unpredictable, often caused by tectonic movements.
- Tsunamis: Result from sea-floor movements, causing high waves and significant coastal damage.
- Tropical Cyclones: Intense low-pressure areas with high-velocity winds, primarily occurring between 30° N and 30° S latitudes.
Conclusion
Disasters can be natural or human-induced, and while they cannot be entirely eliminated, mitigation and preparedness are essential for reducing their impact.
CBSE Exam Tips, Important Questions & Common Mistakes to Avoid
Common Mistakes and Exam Tips on Natural Hazards and Disasters
Common Pitfalls
- Confusing Natural Hazards with Disasters: Many students interchangeably use the terms 'natural hazards' and 'natural disasters'. It is crucial to understand that natural hazards are potential threats, while disasters are the actual events that cause significant damage and disruption.
- Overlooking Human-Caused Disasters: Students often focus solely on natural disasters and neglect human-induced disasters such as industrial accidents and environmental pollution. Both types should be included in discussions and analyses.
- Ignoring Mitigation Strategies: When discussing disasters, students sometimes fail to mention mitigation and preparedness strategies, which are essential for reducing the impact of disasters.
Exam Tips
- Define Key Terms Clearly: Be prepared to define key terms such as 'disaster', 'natural hazard', and 'vulnerability'. Clear definitions can earn you points in exams.
- Use Examples: When discussing types of disasters, include specific examples (e.g., earthquakes in the Himalayas, floods in Bihar) to illustrate your points effectively.
- Understand the Stages of Disaster Management: Familiarize yourself with the three stages of disaster management: pre-disaster, during disaster, and post-disaster operations. This structure can help organize your answers.
- Focus on Vulnerability Zones: Be aware of the different vulnerability zones in India and the factors that contribute to these vulnerabilities. This knowledge can be crucial for answering related questions.
- Practice Past Exam Questions: Review and practice past exam questions related to natural hazards and disasters to familiarize yourself with the format and types of questions that may be asked.
CBSE Quiz & Practice Test – MCQs, True/False Questions with Solutions
Multiple Choice Questions
A.
Decrease in Coriolis force
B.
Lack of warm moist air
C.
Increase in altitude
D.
Presence of strong vertical wind shear
Correct Answer: B
Solution:
Tropical cyclones derive their energy from the latent heat of warm moist air, which is less available inland.
A.
By increasing the infiltration rate of water into the soil.
B.
By stabilizing river banks and reducing soil erosion.
C.
By altering natural drainage channels and deforestation.
D.
By constructing dams that regulate water flow.
Correct Answer: C
Solution:
Human activities such as altering natural drainage channels and deforestation can increase the likelihood of floods by reducing the land's natural ability to manage water flow.
A.
Natural hazards are always man-made.
B.
Natural disasters are sudden and cause large-scale damage.
C.
Natural hazards have no potential to cause harm.
D.
Natural disasters occur over a long period of time.
Correct Answer: B
Solution:
Natural disasters are characterized by their sudden onset and the large-scale damage they cause, whereas natural hazards are potential threats.
A.
High atmospheric pressure at the center
B.
Absence of Coriolis force
C.
Large and continuous supply of warm and moist air
D.
Strong vertical wind wedge
Correct Answer: C
Solution:
A large and continuous supply of warm and moist air is crucial as it provides the latent heat energy needed for cyclone formation.
A.
It results from forces beyond human control.
B.
It requires mobilization of efforts beyond normal emergency services.
C.
It always involves a natural cause.
D.
It causes substantial loss of life or property.
Correct Answer: C
Solution:
The Disaster Management Bill, 2005, defines a disaster as arising from natural or man-made causes, thus not always involving a natural cause.
A.
They are predictable
B.
They cause minimal damage
C.
They occur suddenly and cause widespread damage
D.
They are always caused by human activities
Correct Answer: C
Solution:
Natural disasters occur suddenly and can cause large-scale, widespread damage.
A.
Pre-disaster management
B.
During disaster operations
C.
Post-disaster recovery
D.
Disaster elimination
Correct Answer: D
Solution:
Disaster elimination is not a stage in disaster management; the focus is on mitigation and preparedness.
A.
Advancements in technology
B.
Increased human intervention in nature
C.
Greater media coverage
D.
Improved disaster prediction models
Correct Answer: B
Solution:
Increased human intervention in nature, such as urban development in disaster-prone areas, has led to greater vulnerability and increased magnitude and frequency of natural disasters.
A.
High atmospheric pressure
B.
Interaction of air, sea, and land
C.
Earthquake under the sea
D.
Volcanic eruption
Correct Answer: B
Solution:
A storm surge is generated due to the interaction of air, sea, and land, driven by high horizontal pressure-gradient and strong surface winds.
A.
The speed at which it occurs
B.
The level of human control over the event
C.
The magnitude of destruction caused
D.
The geographical location of the event
Correct Answer: C
Solution:
A natural hazard becomes a natural disaster when it causes large-scale destruction and loss of life, which is beyond the control of the affected community.
A.
Construction of dams in river valleys
B.
Deforestation and land clearing
C.
Implementation of strict zoning laws
D.
Development of early warning systems
Correct Answer: B
Solution:
Deforestation and land clearing can lead to increased surface runoff and reduced soil stability, thereby intensifying the impact of floods.
A.
It is always caused by natural forces.
B.
It results in substantial loss of life or human suffering.
C.
It can be easily managed by local communities.
D.
It is limited to small geographical areas.
Correct Answer: B
Solution:
The Disaster Management Bill, 2005, defines a disaster as an event that results in substantial loss of life or human suffering, among other criteria.
A.
Latent heat from warm moist air
B.
Solar radiation
C.
Geothermal energy
D.
Wind energy
Correct Answer: A
Solution:
Tropical cyclones derive their energy primarily from the latent heat released by warm moist air.
A.
The presence of human settlements
B.
The magnitude of destruction
C.
The frequency of occurrence
D.
The type of natural phenomenon
Correct Answer: B
Solution:
A natural hazard becomes a natural disaster when it causes large-scale destruction and disruption to human life and property.
A.
Evacuation of affected areas
B.
Construction of relief camps
C.
Preparing vulnerability zoning maps
D.
Supplying food and water
Correct Answer: C
Solution:
Preparing vulnerability zoning maps is part of pre-disaster management to help in planning and preparedness.
A.
Cold air masses
B.
Warm and moist air
C.
High altitude winds
D.
Mountain ranges
Correct Answer: B
Solution:
Tropical cyclones form due to the large and continuous supply of warm and moist air that releases latent heat.
A.
Pre-disaster management
B.
During disaster operations
C.
Post-disaster recovery
D.
Disaster elimination
Correct Answer: D
Solution:
Disaster elimination is not a stage in disaster management. The stages are pre-disaster management, during disaster operations, and post-disaster recovery.
A.
Decrease in sea level.
B.
Formation of new land masses.
C.
Inundation of human settlements due to storm surges.
D.
Increase in the salinity of freshwater sources.
Correct Answer: C
Solution:
Tropical cyclones can cause storm surges, which lead to the inundation of human settlements and agricultural fields, causing significant damage.
A.
Landslides due to deforestation
B.
Volcanic eruptions
C.
Tsunamis
D.
Earthquakes
Correct Answer: A
Solution:
Landslides can be triggered by human activities such as deforestation and unscientific land use.
A.
Generating data about disasters
B.
Evacuation and relief operations
C.
Preparing vulnerability zoning maps
D.
Spreading awareness among people
Correct Answer: B
Solution:
Evacuation and relief operations are part of during-disaster management, not pre-disaster management.
A.
Evacuation of affected areas
B.
Construction of relief camps
C.
Rehabilitation and recovery of victims
D.
Spreading awareness about disasters
Correct Answer: C
Solution:
Post-disaster operations focus on rehabilitation and recovery of victims to restore normalcy.
A.
Prevention of future disasters
B.
Immediate rescue and relief
C.
Rehabilitation and recovery
D.
Data collection and analysis
Correct Answer: C
Solution:
Post-disaster operations focus on rehabilitation and recovery of victims, as well as capacity-building to cope with future disasters.
A.
Deforestation
B.
Urbanization
C.
Agricultural expansion
D.
Industrialization
Correct Answer: A
Solution:
Deforestation reduces the land's ability to absorb water, leading to increased surface runoff and a higher frequency of floods.
A.
Deforestation
B.
Planting trees
C.
Building dams
D.
Recycling
Correct Answer: A
Solution:
Deforestation reduces the land's ability to absorb water, increasing surface runoff and the likelihood of floods.
A.
The gradual wearing away of soil by wind
B.
The formation of large channels by concentrated runoff
C.
The slow deposition of sediments in rivers
D.
The rapid movement of rock and debris downslope
Correct Answer: B
Solution:
Gully erosion involves the erosion of soil and rock by the concentration of runoff into gullies, forming large channels.
A.
Pre-disaster management
B.
During disaster operations
C.
Post-disaster recovery
D.
Disaster elimination
Correct Answer: D
Solution:
Disaster elimination is not a stage in disaster management, as it is often impossible to completely eliminate disasters, especially natural ones.
A.
Rapid increase in temperature
B.
Inundation of land and human settlements
C.
Formation of new landforms
D.
Decrease in soil fertility
Correct Answer: B
Solution:
Floods commonly result in the inundation of land and human settlements due to the overflow of water bodies.
A.
Creating vulnerability zoning maps
B.
Conducting rescue and relief operations
C.
Rehabilitation and recovery of victims
D.
Spreading awareness about disaster preparedness
Correct Answer: C
Solution:
Post-disaster management focuses on rehabilitation and recovery of victims to restore normalcy and build capacity for future disaster resilience.
A.
Large supply of warm and moist air
B.
Strong Coriolis force
C.
Strong vertical wind wedge
D.
Unstable conditions in the troposphere
Correct Answer: C
Solution:
A strong vertical wind wedge disturbs the vertical transport of latent heat, which is not conducive for cyclone formation.
A.
Deforestation
B.
Global warming
C.
Tectonic activity
D.
Volcanic eruptions
Correct Answer: A
Solution:
Landslides are often caused by deforestation, which destabilizes the soil and increases the risk of mass movement.
A.
High intensity rainfall for a short period
B.
Melting of ice and snow
C.
Presence of eroded material in water
D.
All of the above
Correct Answer: D
Solution:
Floods can be caused by high intensity rainfall, melting of ice and snow, and the presence of eroded material in water.
A.
An event causing widespread destruction
B.
A potential threat to people or property
C.
A man-made catastrophe
D.
A sudden and unexpected event
Correct Answer: B
Solution:
Natural hazards are elements of the natural environment that have the potential to cause harm to people or property.
A.
A minor road accident
B.
A local power outage
C.
A grave occurrence affecting an area with substantial loss of life
D.
A temporary internet disruption
Correct Answer: C
Solution:
The Disaster Management Bill, 2005 defines a disaster as a grave occurrence affecting an area with substantial loss of life or human suffering.
A.
Formation of new islands
B.
Increased agricultural productivity
C.
Abnormal rise in sea level known as storm surge
D.
Decrease in sea temperature
Correct Answer: C
Solution:
Tropical cyclones can cause a storm surge, leading to an abnormal rise in sea level, inundating coastal areas.
A.
Evacuation and construction of shelters
B.
Rehabilitation and recovery of victims
C.
Generating data and preparing vulnerability zoning maps
D.
Supplying food and medical aids
Correct Answer: C
Solution:
Pre-disaster management involves generating data and information about disasters, preparing vulnerability zoning maps, and spreading awareness.
A.
Large and continuous supply of warm and moist air.
B.
Strong Coriolis force.
C.
Presence of strong vertical wind wedge.
D.
Unstable atmospheric conditions.
Correct Answer: C
Solution:
The presence of a strong vertical wind wedge disrupts the vertical transport of latent heat, which is necessary for cyclone formation.
A.
Tectonic activity
B.
Concentration of runoff into gullies
C.
Volcanic eruptions
D.
Earthquakes
Correct Answer: B
Solution:
Gully erosion is caused by the concentration of runoff into gullies, leading to the erosion of soil and rock.
A.
Construction of large dams in earthquake-prone areas.
B.
Deforestation leading to increased soil erosion and landslides.
C.
Planting trees in coastal areas to prevent soil erosion.
D.
Building earthquake-resistant structures in urban areas.
Correct Answer: B
Solution:
Deforestation can lead to increased soil erosion, which makes the land more susceptible to landslides during heavy rains, indirectly intensifying natural disasters.
A.
Earthquake
B.
Flood
C.
Hurricane
D.
Tornado
Correct Answer: A
Solution:
Earthquakes are caused by tectonic activity, which involves the movement of the Earth's plates.
A.
Rehabilitation of affected communities.
B.
Immediate rescue and relief operations.
C.
Generating data and preparing vulnerability zoning maps.
D.
Rebuilding infrastructure after a disaster.
Correct Answer: C
Solution:
Pre-disaster management focuses on generating data, preparing vulnerability zoning maps, and spreading awareness to mitigate the impact of potential disasters.
A.
Volcanic eruptions
B.
Underwater earthquakes
C.
Hurricanes
D.
Tornadoes
Correct Answer: B
Solution:
Tsunamis are primarily caused by underwater earthquakes that displace large volumes of water.
A.
Deforestation
B.
Fishing
C.
Urban gardening
D.
Cycling
Correct Answer: A
Solution:
Deforestation can lead to landslides by destabilizing the soil and increasing erosion.
A.
Evacuation of affected areas
B.
Conducting vulnerability assessments
C.
Rehabilitation and recovery of victims
D.
Spreading awareness about disasters
Correct Answer: C
Solution:
Post-disaster operations focus on rehabilitation and recovery of victims to restore normalcy.
A.
Natural hazards are human-made, while natural disasters are not.
B.
Natural hazards have the potential to cause harm, while natural disasters cause widespread damage.
C.
Natural hazards occur frequently, while natural disasters are rare.
D.
Natural hazards are always beneficial, while natural disasters are not.
Correct Answer: B
Solution:
Natural hazards are elements that have the potential to cause harm, whereas natural disasters cause widespread damage and loss.
A.
Earthquake
B.
Flood
C.
Deforestation
D.
Tsunami
Correct Answer: C
Solution:
Deforestation is a human activity that can lead to natural disasters but is not a natural disaster itself.
A.
Higher altitude of coastal areas
B.
Proximity to warm sea water
C.
Lack of vegetation
D.
Presence of mountains
Correct Answer: B
Solution:
Coastal areas are more vulnerable to cyclones due to their proximity to warm sea water, which provides the energy needed for cyclones.
A.
A natural event causing minor damage to property.
B.
A human-induced event that is easily managed by local communities.
C.
A catastrophe causing substantial loss of life and damage, beyond local coping capacity.
D.
A rare occurrence with no impact on human life.
Correct Answer: C
Solution:
The Disaster Management Bill, 2005 defines a disaster as a significant event causing substantial loss and beyond the coping capacity of local communities.
A.
Predictable timing
B.
Large-scale destruction
C.
Sudden occurrence
D.
Beyond human control
Correct Answer: A
Solution:
Natural disasters are generally unpredictable in timing, unlike natural hazards which can sometimes be anticipated.
A.
Decrease in sea level
B.
Formation of new land
C.
Storm surge
D.
Increase in temperature
Correct Answer: C
Solution:
Tropical cyclones often cause a storm surge, which is an abnormal rise in sea level.
A.
It is always caused by human actions.
B.
It results in substantial loss of life or human suffering.
C.
It can be easily predicted and prevented.
D.
It only affects the environment.
Correct Answer: B
Solution:
A disaster results in substantial loss of life or human suffering and is beyond the coping capacity of the affected community.
A.
Presence of strong vertical wind wedge
B.
Absence of Coriolis force near the equator
C.
Continuous supply of warm and moist air
D.
Stable atmospheric conditions
Correct Answer: C
Solution:
Tropical cyclones require a large and continuous supply of warm and moist air to release latent heat, which is a key factor in their formation.
A.
Predictable and controllable
B.
Sudden and causes large scale destruction
C.
Slow and gradual
D.
Beneficial to human activities
Correct Answer: B
Solution:
Natural disasters are relatively sudden and cause large scale, widespread death, loss of property, and disturbance to social systems.
A.
Deforestation
B.
Release of CFCs
C.
Unscientific land use
D.
Construction in fragile areas
Correct Answer: B
Solution:
The release of CFCs (Chlorofluorocarbons) is a human activity that directly causes disasters such as environmental pollution.
A.
Volcanic eruption
B.
Ripening of fruits
C.
Change of seasons
D.
Evolution of landforms
Correct Answer: A
Solution:
Volcanic eruptions are sudden natural processes that can cause significant damage, unlike gradual processes like the ripening of fruits or the change of seasons.
A.
To eliminate all natural disasters
B.
To define disaster and establish a framework for disaster management
C.
To increase the frequency of natural disasters
D.
To prevent human activities
Correct Answer: B
Solution:
The Disaster Management Bill, 2005, defines disaster and establishes a framework for disaster management, including mitigation and preparedness.
A.
Deforestation
B.
Urbanization in stable areas
C.
Planting trees
D.
Constructing earthquake-resistant buildings
Correct Answer: A
Solution:
Deforestation removes the vegetation that stabilizes soil, increasing the risk of landslides, especially in hilly areas.
A.
Natural hazards are potential threats, while natural disasters cause actual damage.
B.
Natural hazards always result in loss of life, while natural disasters do not.
C.
Natural hazards are caused by human activities, while natural disasters are not.
D.
Natural hazards occur only in specific regions, while natural disasters are global.
Correct Answer: A
Solution:
Natural hazards are potential threats that may cause harm, whereas natural disasters are the events that actually cause significant damage and disruption.
A.
It provides the heat energy needed for cyclone formation.
B.
It prevents the filling of low pressure at the cyclone's center.
C.
It causes the cyclone to dissipate.
D.
It stabilizes the cyclone's path.
Correct Answer: B
Solution:
The Coriolis force prevents the filling of low pressure at the center of a cyclone, which is essential for its formation and maintenance.
A.
High altitude
B.
Cold ocean currents
C.
Strong Coriolis force
D.
Low humidity
Correct Answer: C
Solution:
A strong Coriolis force is necessary to prevent the filling of low pressure at the center of a tropical cyclone.
A.
Urbanization in high-altitude areas.
B.
Deforestation and soil erosion.
C.
Construction of wind farms.
D.
Expansion of protected forest areas.
Correct Answer: B
Solution:
Deforestation and soil erosion reduce the land's ability to absorb water, increasing surface runoff and the likelihood of flooding.
A.
An event that causes widespread destruction and loss of life
B.
A potential threat to human life and property from natural environmental conditions
C.
A sudden and unpredictable event that requires emergency response
D.
A human-made event causing environmental damage
Correct Answer: B
Solution:
Natural hazards are elements of the natural environment that have the potential to cause harm.
A.
Deforestation
B.
Planting trees
C.
Building dams
D.
Urban planning
Correct Answer: A
Solution:
Deforestation can lead to soil erosion and destabilization of land, which indirectly intensifies natural disasters like landslides and floods.
A.
It is a gradual process.
B.
It is a sudden and swift occurrence.
C.
It is caused by human activities.
D.
It is a permanent change.
Correct Answer: B
Solution:
Tsunamis are sudden and swift occurrences, often caused by underwater earthquakes or volcanic eruptions.
A.
Predictable timing
B.
Large scale destruction
C.
Sudden occurrence
D.
Disruption of social systems
Correct Answer: A
Solution:
Natural disasters are characterized by their sudden occurrence and large-scale destruction, making their timing unpredictable.
True or False
Correct Answer: True
Solution:
Human activities such as deforestation and unscientific land use can indirectly intensify natural disasters like landslides and floods.
Correct Answer: False
Solution:
Floods are relatively predictable compared to other natural disasters like earthquakes, as they often occur in well-identified regions and within expected times.
Correct Answer: False
Solution:
The Disaster Management Bill, 2005, defines disasters as arising from natural or man-made causes, or by accident or negligence.
Correct Answer: True
Solution:
Floods are relatively predictable as their causes, such as excessive rainfall and storm surges, are well-established.
Correct Answer: True
Solution:
From the perspective of nature, changes, including disasters, are value-neutral and are neither inherently good nor bad.
Correct Answer: True
Solution:
Natural disasters are sudden events that cause significant damage and disruption, whereas natural hazards are potential threats present in the environment.
Correct Answer: False
Solution:
Human activities can both directly cause disasters and indirectly intensify natural disasters, such as through deforestation and unscientific land use.
Correct Answer: True
Solution:
Human activities, such as deforestation and urbanization in vulnerable areas, have increased the frequency and magnitude of natural disasters.
Correct Answer: False
Solution:
Tsunamis are sudden and swift changes, not gradual processes.
Correct Answer: False
Solution:
While human intervention can help mitigate the effects of natural disasters, it is not possible to completely prevent them, especially those of natural origin.
Correct Answer: True
Solution:
Disasters are changes that are always disliked and feared by humankind.
Correct Answer: True
Solution:
Disasters are indeed undesirable occurrences that strike quickly with little or no warning, causing or threatening serious disruption of life and property.
Correct Answer: True
Solution:
There is evidence that the magnitude, intensity, frequency, and damage caused by natural disasters have increased over time.
Correct Answer: True
Solution:
Earthquakes are described as the most unpredictable and highly destructive of all natural disasters.
Correct Answer: True
Solution:
Human activities such as deforestation and unscientific land use can accelerate or intensify natural disasters like landslides and floods.
Correct Answer: False
Solution:
Disasters can be caused by both natural forces and human activities.
Correct Answer: False
Solution:
Earthquakes are considered to be the most unpredictable and highly destructive of all natural disasters.
Correct Answer: True
Solution:
Natural disasters are relatively sudden events that cause widespread death, loss of property, and disturbance to social systems.
Correct Answer: True
Solution:
Human activities such as deforestation and unscientific land use can accelerate or intensify disasters like landslides and floods.
Correct Answer: True
Solution:
The Disaster Management Bill, 2005, defines disaster as arising from natural or man-made causes.
Correct Answer: False
Solution:
Floods are relatively slow in occurrences and often occur in well-identified regions and within expected times of the year.
Correct Answer: False
Solution:
Floods have well-established causes, such as excessive rainfall and storm surges, and often occur in predictable regions and times.
Correct Answer: True
Solution:
Technological advancements have allowed humans to intensify activities in disaster-prone areas, increasing vulnerability to disasters.
Correct Answer: True
Solution:
Since it is difficult to eliminate natural disasters, mitigation and preparedness are the best strategies to manage them.
Correct Answer: True
Solution:
Human activities such as industrial accidents, pollution, and deforestation can directly lead to disasters.
Correct Answer: True
Solution:
Human activities such as industrial accidents and environmental pollution can directly cause disasters.
Correct Answer: False
Solution:
Natural hazards and natural disasters are related but distinct phenomena. Natural hazards have the potential to cause harm, while natural disasters are sudden events causing significant damage.
Correct Answer: False
Solution:
Tropical cyclones in India originate in both the Bay of Bengal and the Arabian Sea.
Correct Answer: True
Solution:
The Disaster Management Bill, 2005, defines disasters as arising from natural or man-made causes, including accidents or negligence.
Correct Answer: True
Solution:
Natural disasters are relatively sudden and cause large scale, widespread death, loss of property, and disturbance to social systems.
Correct Answer: False
Solution:
Natural disasters can be caused by human activities, such as the Bhopal Gas tragedy and Chernobyl nuclear disaster.
Correct Answer: False
Solution:
The magnitude, intensity, and frequency of natural disasters have increased over the years.
Correct Answer: False
Solution:
The Disaster Management Bill, 2005, defines disasters as arising from natural or man-made causes, or by accident or negligence.
Correct Answer: True
Solution:
The Disaster Management Bill, 2005, defines a disaster as an event beyond the coping capacity of the affected community.
Correct Answer: False
Solution:
Disasters can be caused by both natural forces and human activities. Human actions such as deforestation and industrial accidents can lead to disasters.
Correct Answer: False
Solution:
Technological power has led humans to intensify activities in disaster-prone areas, increasing their vulnerability to disasters.
Correct Answer: False
Solution:
Human activities such as deforestation and unscientific land use can accelerate or intensify natural disasters like landslides and floods.
Correct Answer: False
Solution:
Natural hazards are elements of circumstances in the natural environment that have the potential to cause harm but do not always result in disasters. Disasters occur when the magnitude of destruction and damage is very high.
Correct Answer: False
Solution:
Not all natural hazards turn into disasters. Disasters occur when the magnitude of destruction and damage is very high.
Correct Answer: True
Solution:
Disasters can arise from natural causes like earthquakes and tsunamis, as well as human-made causes such as industrial accidents and environmental pollution.
Correct Answer: False
Solution:
Technological power has increased human intervention in nature, intensifying activities in disaster-prone areas and increasing vulnerability.
Correct Answer: False
Solution:
Natural hazards and natural disasters are related but distinct phenomena; natural hazards have the potential to cause harm, while natural disasters are actual events causing widespread damage.
Correct Answer: False
Solution:
The Disaster Management Bill, 2005, addresses both natural and man-made disasters.