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N A T U R A L
C A L A M I T I E S
Page 2


N A T U R A L
C A L A M I T I E S
EARTH’S NATURAL DISASTERS
Natural disasters are sudden events caused by
environmental factors, such as earthquakes,
floods, hurricanes, and wildfires, with
devastating impacts on life, property, and the
environment.
Page 3


N A T U R A L
C A L A M I T I E S
EARTH’S NATURAL DISASTERS
Natural disasters are sudden events caused by
environmental factors, such as earthquakes,
floods, hurricanes, and wildfires, with
devastating impacts on life, property, and the
environment.
An earthquake is a sudden shaking of the ground caused
by the movement of Earth's plates, often resulting in
damage to buildings and landscapes.
E A R T H Q U A K E
Page 4


N A T U R A L
C A L A M I T I E S
EARTH’S NATURAL DISASTERS
Natural disasters are sudden events caused by
environmental factors, such as earthquakes,
floods, hurricanes, and wildfires, with
devastating impacts on life, property, and the
environment.
An earthquake is a sudden shaking of the ground caused
by the movement of Earth's plates, often resulting in
damage to buildings and landscapes.
E A R T H Q U A K E
The shock waves produced in an earthquake are
recorded using an instrument called 
seismograph. It measures intensity, 
direction and duration of earthquakes.
MEASURING INTENSITY 
Page 5


N A T U R A L
C A L A M I T I E S
EARTH’S NATURAL DISASTERS
Natural disasters are sudden events caused by
environmental factors, such as earthquakes,
floods, hurricanes, and wildfires, with
devastating impacts on life, property, and the
environment.
An earthquake is a sudden shaking of the ground caused
by the movement of Earth's plates, often resulting in
damage to buildings and landscapes.
E A R T H Q U A K E
The shock waves produced in an earthquake are
recorded using an instrument called 
seismograph. It measures intensity, 
direction and duration of earthquakes.
MEASURING INTENSITY 
Richter Scale is used for determining intensity of an
earthquake from the recording made by a seismograph.
The Richter Scale starts from 1 and 
upward. Earthquakes of 1 magnitude 
are almost not felt but those of 3 or 4 
can be felt. Earthquakes of 8 or higher 
magnitude cause massive damage.
MEASURING INTENSITY 
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FAQs on PPT: Natural Calamities - Science Class 5

1. What are natural calamities?
Ans. Natural calamities are catastrophic events that occur due to natural processes such as earthquakes, floods, hurricanes, and wildfires.
2. How can we prepare for natural calamities?
Ans. To prepare for natural calamities, it is essential to create an emergency plan, stock up on emergency supplies, stay informed about potential risks, and practice evacuation drills.
3. What are the common effects of natural calamities?
Ans. Common effects of natural calamities include loss of life, destruction of property, displacement of people, disruption of infrastructure, and economic hardships.
4. How can we mitigate the impact of natural calamities?
Ans. Mitigating the impact of natural calamities involves implementing early warning systems, building resilient infrastructure, protecting natural ecosystems, and educating the community about disaster preparedness.
5. What should you do during a natural calamity?
Ans. During a natural calamity, it is important to stay calm, follow evacuation orders, seek shelter in a safe place, avoid flooded areas, and listen to updates from local authorities.
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