Tag: environmental economics
Questions Related to environmental economics
The Mathura refinery smoke is thought to reduce the shine of Taj mahal by
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Increasing U.V radiations
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Acid rain
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3, 4 benzpyrene
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All of the above
The reduction in the shine of Taj mahal is understood by the term called as marble cancer. Various pollutants are emitted by the industries situated near Agra, specially the Mathura refinery. These pollutants react with the marble forming a fine layer of dust over it and also various gases like sulphur dioxide and nitrous oxide combines with moisture and settles down as acid rain on the walls of the monument thus provides a yellow tingle to its pure white marble.
Acid rain is caused due to increase in concentration of (in atmosphere)
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$SO _2$ and $NO _2$
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CO and $CO _2$
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CO and $SO _3$
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$O _3$ and dust
Acid rain is rainfall and other forms of precipitation with a pH less than 5. Acid rain is caused by large scale emission of acidic gases into the atmosphere from thermal power plants, industries, and automobiles. The common ones are sulphur dioxide, nitrogen oxides, volatile organic carbons and hydrogen chloride. These oxides combine with water to form acids.
Acid rains are produced by
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Excess $NO _2$ and $SO _2$ from burning fossil fuels
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Excess production of $NH _3$ by industry and coal gas
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Excess release of carbon monoxide by incomplete combustion
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Excess formation of $CO _2$ by combustion and animal respiration
When the industrial activities use the fossil fuels, the excess of this usage results in the release of oxides of nitrogen and oxides of sulphur. These condense around in the troposphere and react with water to form the nitric acid, nitrous acid, and sulphuric acid. These acids precipitate with rain to form the acid rain. Acid rain is corrosive to the tissues, buildings etc.
Corrosion of statues and monuments occurs due to
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Photochemical smog
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Carbon monoxide
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Acid rain
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Methane
Acid rain is rich in sulphuric acid and nitric acid. These acids have corrosive effects on the building material. They get deposited on the limestone, sandstone, marble etc. and increase their corrosion when exposed to the rain and fog.
Which of the following gases cause acid rain?
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Carbon monoxide and carbon dioxide
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Sulphur dioxide and oxides of nitrogen
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Oxides of nitrogen and carbon dioxide
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None of these
The fossils burn in the atmosphere and forms oxides. These oxides combine with the precipitation and forms acids. This acid falls on earth as acid rain. The acid rain harms the flora and fauna. It also causes skin diseases.
Etching of marble, limestone, jewellery, etc., is caused by pollutant.
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$CO _2$
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CO
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$SO _2$
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$CH _4$
Acidic compounds such as sulphuric acids and nitric acids are corrosive in nature and cause etching of marble, limestone and jewellery.
Acid rain is caused by
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$SO _2$ and $SO _3$
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$SO _2$ and CO
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$NH _3$ and CO
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$SO _2$ and $NH _3$
Acid rain is caused by the chemical reaction. Basically, rain that has unusually low pH is called acid rain. The most common chemicals that cause acid rain are sulphur oxides and nitric oxides. These substances rise high in the atmosphere where they react with water, oxygen and other chemicals to form more acidic pollutant. Sulphur dioxide on reaction with water and oxygen forms sulphur trioxide which is rapidly converted into sulphuric acid in presence of water.
The term acid rain was given by
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Fourier
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Angus
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Tyndall
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Linnaeus
The term acid rain was coined in 1872 by Robert Angus Smith. The acid rain is contains water having pH around 5.6. When the air pollutants like oxides of nitrogen and oxides of sulphur reach the troposphere, they react with the water or moisture and forms acids like nitric acid, nitrous acid or sulphuric acid. These acids then precipitate with the rain to form the acid rain. Hence, the correct answer is 'Angus'.
How does acid precipitation(acid rain) affect plants?
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It releases H$+$ ions, thereby increasing the of rate photophosphorylation in green cells
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It precipitates organic acids in palisades cells of leaves, thereby inhibiting respiration
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It injuries foliage leading to reduction in photosynthesis, biomass and occasionally death
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It precipitates toxic nutrients in soil leading to growth inhibition in trees
Acid rains are produced by
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Excess $ { NO } { x } $ and $ { SO }{ 2 } from burning fossil fuels
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Excess production of $ { NH } _{ 3 } $ by industries and power plants
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Excess release of carbon monoxide by incomplete combustion of fossil fuels
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Excess release of $ { CO } _{ 2 } $ by combustion and animal respiration.
Acid rain is caused by large-scale emission of acidic gases into the atmosphere from thermal power plants, industries, and automobiles. The common ones are sulfur dioxide, nitrogen oxides NOx, volatile organic carbons VOCs and hydrogen chloride. NOx is also produced in the atmosphere through lightning. Sulfur dioxide and nitrogen oxides are changed in the atmosphere into sulphuric acid and nitric acid by combining with oxygen and water.