Tag: air pollution and its effects

Questions Related to air pollution and its effects

Which of these activities causes air pollution?

  1. Rapid urbanization and industrialization

  2. Deforestation

  3. Burning of fuels like coal and petroleum

  4. All of the above


Correct Option: D
Explanation:

Air pollution is due to various substances that holds the potential to hinder the atmosphere or the well  being of the living beings surviving in it. The sustainment of all things living is due to a combination of gases  that collectively form the atmosphere; the imbalance caused by the increase or decrease of the percentage  of these gases can be harmful for survival. All the above mentioned a, b & c points are the cause of air  pollution.

So, the correct answer is 'All of the above'.

Human activities such as transportation and manufacturing result in the greatest impact on the Earth through

I. Soil erosion
II. Habitat destruction
III. Air pollution 

  1. I only

  2. II only

  3. III only

  4. I and II only

  5. II and III only


Correct Option: C
Explanation:
I. Soil erosion is the loss of upper fertile layer of soil due to flood, wind or any other natural calamity.
II. Habitat destruction is the loss of natural home of organisms i.e. destruction in the place where an organism lives.
III. Air pollution is any undesirable change in the atmosphere.
Human activities such as transportation and manufacturing have resulted in the emission of harmful gases like carbon dioxide, methane etc. Hence they have caused the greatest impact on Earth through Air pollution.
So, the correct answer is 'III only'.

Which of the following doesnot cause air pollution?

  1. Increasing forest reserves

  2. Using pesticides in farms

  3. Developing housing estates

  4. Quarrying for limestone


Correct Option: A
Explanation:

The use of excessive chemical fertilizers and pesticides results in the water pollution and soil pollution. The construction of the housing estates results in air pollution. The quarrying of the limestone also results in the release of the particles causing air pollution. The increase in the forest reserves does not result in any kind of pollution. 

Thus, the correct answer is option A. 

Huge amount of toxic chemicals leak into the surrounding eco system because of

  1. Industries

  2. Mining

  3. Pestisides

  4. Modern technology


Correct Option: A

Lead (Pb) causes

  1. Soil pollution

  2. Air pollution

  3. Radioactive pollution

  4. All the above


Correct Option: B
Explanation:

Lead is an important pollutant of soil and atmosphere. Lead is a heavy metal and very immobile element. Hence, the lead may quickly reach very high concentrations locally. Lead is a prominent pollutant released from factories manufacturing dry cells and batteries. In the atmosphere, lead is released by combustion of fossil fuels. Fossil fuels contain lead compounds as an additive as antiknock agents. Combustion of such fuel in vehicles leads to air pollution.

The Tajmahal which is a historical monument built with marble is being corroded due to the gases let out by the nearby oil refineries. The chief pollutants are 

  1. $CO$

  2. $CO _2$

  3. $SO _2$

  4. $NO _2$


Correct Option: C,D

Which of the pollutant irritates the mucous membrane?

  1. Nitrogen dioxide

  2. Carbon monoxide

  3. Sulphur dioxide

  4. Hydrogen sulphide


Correct Option: D

The chief sources of air pollution is

  1. Pesticides

  2. Sewage

  3. Automobiles

  4. None of the above


Correct Option: C

What are green house gases?

  1. Gases that trap heat in the atmosphere

  2. The gases produced by plants

  3. Gases that escape from volcano

  4. All of the above


Correct Option: A

Exchange of incoming and outgoing radiation that keep the earth warm is known as

  1. Global warming

  2. Ozone layer depletion

  3. Green house effect

  4. Radiation effect


Correct Option: C