Tag: air pollution and its effects
Questions Related to air pollution and its effects
Deposition of acid substance, generated from pollution, known as
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Acid deposition
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Ozone Depletion
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Eutrophication
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Deforestation
Weak acids, only capable of adding, fewer
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$H _{2} ions$
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HCl ions
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Cl ions
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P ions
When oil and gas resources are burnt they kill many forests and lakes by
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deforestation
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water pollution
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acid rain
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forest fire
Acid rain is the downpour of
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carbon dioxide in rain
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dust in rain
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sulphur dioxide in rain
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oxygen in rain
When the pH of raindrops down below 5.5 it is called acid rain. It occurs because of oxides of sulphur (SO2) and nitrogen (NO) which on reacting with water in the atmosphere form sulphuric acid and nitric acid. These acids then come down on earth along with rain and thus, making the rain acidic. Hence, acid rain is the downpour of sulphur dioxide (SO2) and nitric oxide (NO).
Recent reports of acid rains industrial cities are due to the effect of atmospheric pollution by?
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Excessive releases of $NO _2$ and $SO _2$ by burning of fossil fuels
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Excessive release of $CO _2$ by burning of fuel like wood and charcoal, cutting of forests and increased animal population
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Excessive release of $NH _3$ by industrial plants and coal gas
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Excessive release of CO in atmosphere by incomplete combustion of coke, charcoal and other carbonaceous fuels in pancity of oxygen
the biggest cause of acid rain today is Sulfur dioxide and nitrogen oxides released into the air by fossil-fuel power plants, oil refineries, and vehicles, that react with rain water to form sulphuric acid and nitric acid respectively
Acid rain is due to
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combustion to fossil fuels
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oxides of sulphur and nitrogen
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oil slick
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nuclear wastes
So, the correct answer is 'Oxides of sulphur and nitrogen'.
Acid deposition damages leaves of birch and needles of:
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Grass
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Pine Tree
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Fruits Trees
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Vegetables
What compounds are identified as contributing to acid rain?
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Carbon dioxide
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Sulphur and nitrogen oxides
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Mercury oxides
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Phosphates
Acid rain is a rain that is usually acidic (elevated levels of hydrogen ions) or low pH. It can have harmful effects on plants and aquatic animals. Acid rain is caused by emission of sulphur dioxides and nitrogen oxides which react with water molecule in the atmosphere to produce acids.
Acid rain is produced when rain mixes with gases such as sulphur dioxide. This will eventually result in
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Lowering of pH and changes of temperature in ponds
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Raising of pH in ponds, encouraging growth of if microorganisms
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Lowering of pH in ponds, limiting survival of aquatic organisms
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Raising of pH in ponds, limiting development of organisms
The ecological effects of acid rain are most clearly seen in the aquatic
environments, such as streams, lakes, etc. Acid rain flows into
streams, lakes and marshes after falling on forests, fields, building
and roads. Acid rain water primarily decreases the pH of water sources
from normal range (6 to 8 pH) Lakes and streams become acidic (i.e., pH
values goes down), when water itself and its surrounding soil cannot
buffer the acid rain water to neutralize it. In areas where buffering
capacity is low, acid rain releases aluminium from soils into lakes and
streams, aluminium is highly toxic to many species of aquatic organisms
leading to their mortality. Therefore, limiting the survival of aquatic
animals. So, the correct answer is 'Lowering of pH in ponds, limiting survival of aquatic organisms'.
In acid rain, sulphuric acid accounts for
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100% of acid
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70% of acid
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50% of acid
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30% of acid
Acid rain is acidic with a pH of below 5.6. Rain becomes acidic because of gases that dissolve in the rain. Approximately 70% of acid rain is a result of dissolved sulfur dioxide ($SO _2$), which forms sulphuric acid. The remaining 30% or so comes from various nitrogen oxides (mostly $NO _2$ and $NO _3$, which has collectedly called NOx). There are also a small percentage of hydrochloric acid and carbonic acid.