Tag: the environment and us

Quizzes (17) Questions (187)

Questions Related to the environment and us

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

PAN stands for

  1. Per acetyl nitrite

  2. Peroxyacetyl nitrite

  3. Peroxy aceto-nitrite

  4. Pyridine aceto-nitrite
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The full form of PAN is Peroxyacetyl nitrate. It is a major pollutant of smog which has adverse effects on eyes and lungs. Therefore the correct answer is B.

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

Carbon monooxide is a pollutant because

  1. It reacts with $O _2$.

  2. It inhibits glycolysis.

  3. Makes nervous system inactive.

  4. Reacts with haemoglobin.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

CO reacts with haemoglobin much faster than oxygen. It can be fatal to life. If the amount of CO is high, it forms carboxy haemoglobin on combination with haemoglobin which causes suffocation even leads to death in fetal condition. Thus, the correct answer is option D.

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

The most polluted city of the world is

  1. Zabol

  2. Calcutta

  3. Tokyo

  4. New York
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

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

  1. Ecological disturbance

  2. Catastrophe

  3. Ecological degradation

  4. Pollution
Reveal answer Fill a bubble to check yourself
D Correct answer
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.
Multiple choice business organisation and correspondence environmental pollution and industries air pollution and its effects the environment and us environment and conservation

Particulate pollutants are

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Which of the following is the major cause of pollution?

  1. Plants

  2. Man

  3. Fungi

  4. Hydrocarbon gases
Reveal answer Fill a bubble to check yourself
B Correct answer
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.

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

Pollution is

  1. Release of toxic or undesirable materials in environment

  2. Conservation of energy

  3. Removal of top soil

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pollution is defined as the introduction of harmful or undesirable substances into the environment, which causes adverse effects on living organisms and natural systems.

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

The lowest region of atmosphere is known as

  1. Stratosphere

  2. Ozonosphere

  3. Troposphere

  4. Mesosphere
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

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

  1. Industrial effluents

  2. Aerosols

  3. Sewage pollutants

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
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. 

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

Classical smog is

  1. Dark brown smog

  2. Yellow brown smog

  3. Los Angeles smog

  4. Smog with secondary pollutants
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.