Double Revolving field theory-how the rotor develops torque
Natural Disasters .pptx
1. Submitted by
HUGAR SIDDESH
USN:3VC20ME419
V.V. Sangha’s
RAO BAHADUR Y MAHABALESWARAPPA ENGINEERING COLLEGE
Department of Mechanical Engineering
2022-2023
Under the guidance of
Dr. Kottresh Sardar
2. Contents:
1) Introduction
2) Types of Natural disaster
3) Reasons for Natural disaster
4) Solution for Natural disaster
5) conclusion
6) References
3. Introduction
A natural disaster is a disaster caused by nature, such as floods,
volcanic eruptions, earthquakes, tsunamis, landslides, sinkholes,
drought, heat waves, tropical storms, typhoons, Ice Ages,
tornadoes, and wildfires.
A biological threat such as locusts or toxic fungi could also
be considered a natural disaster.
4.
5. Disasters can be broadly classified into two
types
Natural disasters
Man- made disasters
6. A natural disaster is a majoradverse event resulting from
natural processes of the Earth. This may cause loss of life
and could also cause economic damage.
Some examples of natural disasters are-
⚫Floods
⚫Earthquakes
⚫Volcanic eruptions
⚫Avalanches
⚫Tsunamis
Natural disasters
7. MAN MADE DISASTERS
Disasters caused by human activities that
has an adverse effect are called
man made disasters.
Some examples of man-made disasters are
⚫Nuclearexplosion
⚫Global warming
⚫Oil spills
⚫Fires
8. ■ Result from heavy rains.
■ May involve rivers overflowing, storm
surge/ocean waves, & dams or levees
breaking.
■ Most common natural hazard.
■ Flashfloods = floods that happen very
fast.
Floods
10. Tsunamis
■ Form as a result of earthquakes,
volcanoes, or landsides under the
ocean.
■ Waves grow taller as they reach the
coast.
■ Four out of Five occur in the Ring of
Fire.
■ Over 200,000 people Died in the
26/12/2005 Indian Ocean tsunami.
12. Wildfires
■ Occur in forests, grasslands, and
wooded areas.
■ Most common causes: lightning
and human accidents.
■ Burn more than 4 million acres in
the U.S. each year.
14. Earthquakes are usually
caused when underground rock
suddenly breaks and there is rapid
motion along a fault.
This sudden release of energy
causes the seismic waves that
make the ground shake
Earthquakes
17. Awareness, education, preparedness,
and prediction and warning systems can
reduce the disruptive impacts of a natural
disaster on communities
SOLUTIONS FOR NATURAL DISASTERS
18. CONCLUSION
Natural disasters can cause severe damage to the environment. It is
high time we must be aware that natural disasters can also be
triggered by mankind. Our activities which affect nature can lead
nature to backfire on us. Natural disasters can not be stopped when
they occur, but they can be prevented to some extent.