A natural disaster is any natural phenomenon which causes such widespread human material or environmental losses that the stricken community cannot recover without external assistance.
Natural Disasters on Earth: Essay on Natural Disasters Words Article shared by: Here is your comprehensive essay on Natural Disasters! A natural disaster is unforeseen, severe and immediate.
Pollution, ozone depletion in the stratosphere and global warming come in this category. The destructive potential of any natural hazard is estimated basically by its spatial extent and severity. Spatial extent upto which the effect of a disastrous event could be felt may easily be classified into small, medium and large scales.
The phenomenon extending from a few kilometers to a few tens of kilometers are termed as small scale. Growing industrialisation and unjustified exploitation of natural resources have brought our echo system to a verge of non-reversibility and imbalance.
This has led to a threat from a set of natural hazards like pollution, global warming and ozone depletion on large or global scale. The management aspect of disaster may be classified as: The most important is the early warning systems.
Unless sufficient advance notice is available, evacuation of the population likely to be affected cannot be undertaken. There are two aspects of early warning system. One is the availability of an effective technique to forecast the disaster with its extent and the other is effective communication of the same to the civil authority responsible for rescue operations.
In some phenomena, such as cyclones, flood, etc. Hence early warning, communication, and rescue operations are possible. But, in a few cases like flash floods, microburst, etc.
On the contrary, in earthquakes no proven methods has yet been evolved to give any prior warning and so post-hazard mitigation is the only alternative.
Role of Communication For a developing country like India, the role of communication in disaster mitigation is extremely critical. These can neither be provided in a short span of time available for mitigation nor are there resources to do so.
We have to depend on existing links, many of which completely break down during the disaster. The various types available for dissemination of disaster warning as well as arranging mitigation are: This assumes that the earth stations at the two ends are suitably located to remain unaffected.
Experience has shown that it remains completely unaffected under the severest cyclonic condition. However, the system is limited to one way communication only. The only addition required is the missing link between the nearest earth station to police headquarters.
This would be a cost effective and reliable communication system for disaster warning and mitigation. The theory of plate tectonics offers a comprehensive explanation for several geological phenomena — continental drift, mountain building and volcanism, and, of course, earthquake. According to this theory, when the molten mass that was the earth billions of years ago cooled down, the crust that was formed was not one homogenous piece but broken into about a dozen large plates and several smaller ones with their thickness ranging from 30 km down to the lithosphere at depth of about km or so.
The plates are in incessant motion, with speeds of about 1 cm to 5 cm a year. Where two places converge or collide, a deep trench forms and one plate is deflected downwards into the asthenosphere which lies below the crust and the lithosphere.Cause & Effect Essay: Natural Disasters and Their Causes Natural disasters happen all over the world, and they can be utterly devastating for people’s lives and the environments in which they live.
Although natural disasters are caused by nature and there is nothing that we can do to prevent them happening, there are many different. Natural disasters include cyclones, earthquakes, floods, drought (though these two are now being increasingly considered ‘man- made’ disasters) heat and cold waves, landslides, avalanches, flash floods, severe thunderstorms, hail, low level wind shears, and microburst.
Here is an essay on natural disasters in Hindi: प्राकृतिक आपदा प्रकृति के द्वारा किए गए ऐसे अकस्मात एवं नुकसानदायक परिवर्तन, जिससे जन जीवन प्रभावित होता है प्राकृतिक आपदाए. Contextual translation of " words essay on natural disaster in hindi" into English.
Human translations with examples: s fox hindi essay. Natural Disasters on Earth: Essay on Natural Disasters ( Words) Article shared by: ADVERTISEMENTS: Here is your comprehensive essay on Natural Disasters!
Nature and Management: A natural disaster is unforeseen, severe and immediate. Pollution, ozone depletion in the stratosphere and global warming come in this category. A argumentative essay topics news essay on cooking nature in hindi, essay writing site english tips.
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