Tag: air pollution and its effects

Questions Related to air pollution and its effects

The most polluted city of the world is

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Zabol 

  2. Calcutta

  3. Tokyo

  4. New York

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Correct Option: A
Explanation:

According to the WHO, the most polluted city in the world in 2016 is Zabol in Iran with particulate matter concentration of 2.5. This is more than 20 times higher than the WHO's guidelines. Thus the correct answer is option A.

The unfavourable alteration of environment due to human activities is termed as

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Ecological disturbance

  2. Catastrophe

  3. Ecological degradation

  4. Pollution

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Correct Option: D
Explanation:
Pollution is defined as the process of making land, water, air or other parts of the environment unfavorable for life by the introduction of a contaminant into a natural environment through human activities. Thus the correct answer is option D.

Particulate pollutants are

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  1. Small solid particles and liquid droplets

  2. Liquid droplets in atmosphere

  3. Small solid particles released into the atmosphere

  4. All of the above

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Correct Option: A
Explanation:

Particulate pollutants are the mixture of small solid particles and liquid droplets. It consists solid particles like soot, flash, dust of various types, fir, hair, spore etc. It is classified as the suspended particulate matter which is the source of pollution and may adversely affect the environment. It can cause harmful effects on health on inhaling it.

So, the correct answer is option A.

Which of the following is the major cause of pollution?

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Plants

  2. Man

  3. Fungi

  4. Hydrocarbon gases

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Correct Option: B
Explanation:

Hydrocarbons are nonbiodegradable pollutants. They are a type of secondary pollutants. They are very dangerous for life. Hydrocarbons are produced naturally as well as due to incomplete combustion of the fuels. They are the major cause of respiratory disorders. Man used fuel for their own purpose with releases harmful gasses and causes pollution.

Pollution is

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Release of toxic or undesirable materials in environment

  2. Conservation of energy

  3. Removal of top soil

  4. All of the above

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Correct Option: A

The lowest region of atmosphere is known as

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  1. Stratosphere

  2. Ozonosphere

  3. Troposphere

  4. Mesosphere

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Correct Option: C
Explanation:

The atmosphere comprises of layers based on temperature. Each layer has a specific composition of gases. These layers are the troposphere, the stratosphere, mesosphere and thermosphere. All these layers are placed to a different level from the earth. 

The troposphere is the lowest layer of the Earth's atmosphere. It starts at Earth's surface and goes up to a height of 7 to 20 km above sea level. Most types of clouds are found in this region, and almost all weather occurs within this layer. It holds nearly all of the water vapor in the Earth's atmosphere, regulates temperature and produces weather. Hence option C is correct.

Which of the major sources of air pollution contributes pollutants like chlorofluorohydrocarbons?

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Industrial effluents

  2. Aerosols

  3. Sewage pollutants

  4. All of the above

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Correct Option: B
Explanation:

The presence of CFCs in the atmosphere results in the depletion of the ozone layer. They are used as coolants in refrigerators, aerosol sprays, coolers, etc. The increase in the concentration of the chloro- fluoro-hydrocarbon molecules in the atmosphere results in air pollution. 

Thus, the correct answer is option B. 

Classical smog is

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  1. Dark brown smog

  2. Yellow brown smog

  3. Los Angeles smog

  4. Smog with secondary pollutants

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Correct Option: A
Explanation:
Smog is the fog containing smoke. Smog is of two types depending upon the type of pollutants; classical smog and photochemical smog.
  • Classical smog is formed when there is high concentration of sulphur dioxide and particulate matter produced due to combustion of fuels. It occurs in cold and humid climate. It is also known as London smog or Sulphurous smog and causes dark brownish colour of atmosphere.
  • Photochemical smog is formed when sunlight acts on the oxides of nitrogen and hydrocarbons produced from factories or by automobiles. It occurs in warm and dry climate. It is also known as Los Angeles smog and causes light brownish colouration of atmosphere.
So, the correct answer is 'Dark brown smog'.

The term smog was coined by

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Fourier

  2. Des Voeux

  3. Schouw

  4. Ashbel

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Correct Option: B
Explanation:
A. Fourier was a French mathemathician who discovered how global warming occurs due to rise in temperature of earth's surface.
B. Des Voeux coined the term smog in 1905 to describe the condition of fog which has smoke in it.
C. J.F. Schouw was a Danish botanist who worked on phytogeography and origin of species and their evolution.
D. Ashbel with the expertise in biology and medicine worked on various scientific aspects.
So, the correct answer is 'Des Voeux'.

Which of the following disease is caused by excess pollen in the air and is characterized by collective symptoms of asthma, bronchitis and rhinitis?

business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

  1. Kala azar

  2. Sleeping sickness

  3. Hay fever

  4. Yellow fever

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Correct Option: C
Explanation:

A.   A.  Kala azar is caused by bites from female phlebotomine sandflies – the vector (or transmitter) of the leishmania parasite.

B.    B.Sleeping sickness is caused by two types of parasites Trypanosoma brucei rhodesiense and Trypanosomoa brucei gambiense. Tsetse flies carry the infection

C.Hay fever is an allergic disorder characterized by an exaggerated immune response to pollen grains and other substance. It is also called allergic rhinitis which affecting the nose. Symptoms generally have runny nose, itchy eyes,mouth,skin or sneezing 
D. yellow fever is caused by the Flavivirus , and it's transmitted when an infected mosquito bites you. 
So, the correct option is 'Hay fever'.