Tag: sources of pollution

Questions Related to sources of pollution

Effect of pollution is first marked on 

  1. Micro-organisms

  2. Green vegetation of an area

  3. Food crop

  4. None of the above


Correct Option: B
Explanation:

Atmospheric pollutants have a negative effect on the plants; they can have direct toxic effects, or indirectly by changing soil pH followed by solubilization of toxic salts of metals like aluminium. The particulate matters have a negative mechanical effect. They cover the leaf blade reducing light penetration and blocking the opening of stomata. These influence strongly the process of photosynthesis whose rate declines sharply. Also, the leaves of the trees have an important role in the retention of the particulate matters; they are mostly affected when the wet and dry atmospheric deposition increase.

So, the correct answer is option B.

Any unfavorable alteration of the environment may be called as

  1. eutrophication

  2. environmental pollution

  3. biomagnigication

  4. bioaccumulation


Correct Option: B

During inversion, visibility is reduced and pollutant concentration is

  1. Minimized

  2. Maximized

  3. Reduced

  4. Decreased


Correct Option: B

For which of the following PM10 and PM2.5 Samplers are used?

  1. Food adulteration

  2. Adulterated Petrol

  3. Environment Pollution

  4. Noise Pollution


Correct Option: C

Which is not a pollutant from exhaust of motor vehicle?

  1. SO$ _2$

  2. CO

  3. Fly ash

  4. Hydrocarbon gas


Correct Option: C
Explanation:

Fly ash is produced due to the incomplete burning or combustion of the fossil fuels. The ash contains the carbon particles or flecks which are suspended in the air. The pollutants which are released from the exhaust of the motor vehicle are particulate matter, SO$ _2$, NO$ _x$, CO, etc. 

Thus, the correct answer is option C. 

Effect of pollution is first marked on

  1. Natural balance of the ecosystem

  2. Geological cycle

  3. Rainfall and climate

  4. Fauna of a place


Correct Option: A

Which of the following statements is true?

  1. Lichens are affected by SO$ _2$.

  2. All pollutants are not waste.

  3. Carbon monoxide is a serious pollutant.

  4. All of the above.


Correct Option: D

A very harmful fibrous component causing pollution and an inflicting disease of lungs in human beings is

  1. Asbestos

  2. Eichhornia roots

  3. ABS micelle

  4. Grease


Correct Option: A
Explanation:

Asbestos is widely used in shipbuilding, commercial product manufacturing, power plants, and construction. It causes air pollution. Asbestos fibers are easily inhaled because they are microscopic. Once inhaled, the fibers cling to the respiratory system, including the lining of the lungs and inner cavity tissue. Asbestos fibers are rigid hence they become lodged in the soft internal tissue of the respiratory system. They cannot be easily expelled or broken down by the body thus damaging the lungs. Thus the correct answer is option A.

Which human disease becomes aggravated by atmospheric pollution?

  1. Bronchitis

  2. Leucoderma

  3. Haemophilia

  4. Rheumatism


Correct Option: A
Explanation:

Bronchitis is caused due to infection and swollening of the bronchial tubes which carries air to the lungs. It is of two types i.e., acute and chronic. The acute is of mild type and caused by virus, even by bacteria and also exposure to substances that irritate the lungs, such as tobacco smoke, dust, fumes, vapors, and air pollution.

So, the correct answer is option A.