Which of the following phenomena is not a natural hazard?
Chemical contamination
Hazards are classified by their origin. A natural hazard arises from processes of the earth or the atmosphere and would occur whether or not human beings were present; a man made or anthropogenic hazard results from human activity.
Wildfire is a natural hazard. Forest and grassland fires are ignited by lightning and spread under conditions of drought, high temperature and wind, and fire has been part of the ecology of many forests long before human settlement. Some wildfires are started by people, but the phenomenon itself is natural.
Lightning is a natural hazard. It is an electrical discharge produced by charge separation within thunderclouds, entirely a product of atmospheric processes, and it kills a substantial number of people in India each year.
Landslide is a natural hazard. Slope material moves downhill under gravity when rainfall, earthquake shaking or erosion reduces its stability. Human activity such as deforestation or road cutting can trigger landslides, but the process is geological.
Chemical contamination is not a natural hazard. It is the release of harmful chemicals into air, water or soil through industrial discharge, accidental spills, pesticide use or improper disposal of waste. It has no natural cause; without industry and chemical use it would not occur. The Bhopal gas tragedy of 1984 is the standard Indian example of such a man made disaster.
Hence chemical contamination is not a natural hazard.
Similar Questions
Given below are two statements:
Statement I: Flood fringe is the lowest part of the flood plain, where no development is permitted and which is reserved for the passage of flood flows.
Statement II: Floodway is an area of floodplain land where filling and development may be permitted subject to land use and building code regulations designed to minimize damage.
In the light of the above statement, choose the correct answer from the options given below:Given below are two statements :
Statement I : Most of the hazardous landslides are induced by earthquakes.
Statement II : All landslides involve falling of earth material under shear stress.
In the light of the above statements, choose the correct answer from the options given below :
Which among the following natural hazards has relatively slow onset?
Which of the following types of natural disasters has no definite beginning and end?
In the last few years, India has been affected by which of the following tropical cyclones?
Assertion “A”: Hails damage the standing crops.
Reason “R”: In India, hails occur only during the winter season
The cyclone 'Hudhud' hit the coast of which State?
'Lahar' is a natural disaster involving
The National Disaster Management Authority functions under the Union Ministry of
Match List - I and List - II and select the correct answer from the codes given below:
List - I List - II a. Flood 1. Lack of rainfall of sufficient duration b. Drought 2. Tremors produced by the passage of vibratory waves through the rocks of the earth c. Earthquake 3. A vent through which molted substances come out d. Volcano 4. Excess rain and uneven distribution of water Codes:
Important Questions from Natural Disasters
Which is not a natural disaster?
Who was the first geologist to devise an instrument used to detect an earthquake?
The mass movement of rock, debris or earth down a slope is referred to as:
What is the primary geological phenomenon responsible for generating the majority of destructive tsunamis?
Identify the terrestrial disasters
(A) Cold wave
(B) Seismic
(C) Collision of meteors with the earth
(D) Tsunami
Choose the correct answer from the options given below:
