Tag: air and water pollution control

Questions Related to air and water pollution control

Acid rain pollutes:

history a road to history taj mahal: a case study air and water pollution control air and water pollution

  1. air

  2. water

  3. soil

  4. all of these

Show answer
Correct Option: B,C
Explanation:

Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions. Acid rain pollutes water and soil. It can have harmful effects on plants, aquatic animals and infrastructure.


Acid rain:

history a road to history taj mahal: a case study air and water pollution control air and water pollution

  1. reduces fertility of soil

  2. damage vegetation

  3. affects marble monuments

  4. all of these

Show answer
Correct Option: D
Explanation:

Acid rain is very harmful as it contains sulphuric acid and nitric acid. It reduces the fertility of soil, damages vegetation and affects the marble monuments by corrosion.

How individuals can help to prevent acid rains?

history a road to history taj mahal: a case study air and water pollution control air and water pollution

  1. By using public transportation

  2. Using the electrical energy efficiently

  3. Simply walking wherever possible

  4. All

Show answer
Correct Option: D
Explanation:

All the above activities result in the less use of fossil fuels, and hence less release of acid rain causing oxides.


Hence the correct option is D.

The pollutants in the air are:              

history a road to history taj mahal: a case study air and water pollution control air and water pollution

  1. melting white marbles of Taj Mahal.

  2. discoloring white marbles of Taj Mahal.

  3. forming cracks in the marbles of Taj Mahal.

  4. all of above

Show answer
Correct Option: B
Explanation:

Since the area in which Taj Mahal is located is surrounded by many industries and factories, they emit a great amount of pollutants into the atmosphere, They even release toxic and acidic components in the near by water bodies. The pollutants in air are discoloring the white marbles of Taj Mahal due to acidic corrosion (caused by the oxides of non-metals like sulfur and nitrogen).

In acid rain, pH of rain water is:

history a road to history taj mahal: a case study air and water pollution control air and water pollution

  1. 7

  2. 9.0

  3. more than 9.6

  4. below 5.6

Show answer
Correct Option: D
Explanation:

When pH of rain water drops anywhere below 5.6, it is said to be acid rain. 


The main cause for acid rain is the presence of high levels of oxides of sulphur and nitrogen, which form acids with water.

Hence, the correct option is $D$.


Acid rain can be prevented by:

history a road to history taj mahal: a case study air and water pollution control air and water pollution

  1. use of cleaner fuels

  2. attaching devices known as scrubbers in the chimneys

  3. both A and B

  4. none of above

Show answer
Correct Option: C
Explanation:

One of the most fundamental acid rain solutions is to utilize fuels that burn more cleanly or to burn coal more efficiently. This will greatly reduce the possibilities of acid rain developing in the atmosphere.

 As far as industrial power plants are concerned, the best solution is to attach devices known as scrubbers in the chimneys of these plants. These scrubbers reduce the amount of sulfur produced in the smoke by 90-95%.

Industries like Mathura Oil Refinery produce pollutants like:

history a road to history taj mahal: a case study air and water pollution control air and water pollution

  1. sulphur dioxide

  2. nitrogen dioxide

  3. both a and b

  4. hydrochloric acid

Show answer
Correct Option: C
Explanation:

The industries located in and around Agra like rubber processing, automobile, chemicals and especially Mathura Oil Refinery have been responsible for producing pollutants like sulphur dioxide and nitrogen dioxide, which contaminate the environment by producing dissolved acids in the air.  

The major threat to Taj Mahal is:

history a road to history taj mahal: a case study air and water pollution control air and water pollution

  1. acid rain.

  2. hydrogen peroxide.

  3. Both a and b.

  4. None of the above.

Show answer
Correct Option: A
Explanation:

Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids. 

Acid rain corrodes the marble (calcium carbonate) of Taj Mahal. It causes damage to this wonderful structure, causing yellowing of marble.

Which gas reduces the oxygen-carrying capacity of the blood?

chemistry air and water pollution control ways to prevent air pollution ways to reduce air pollution reducing air pollution

  1. $CO$

  2. $CO _2$

  3. $NO _2$

  4. $SO _2$

Show answer
Correct Option: A
Explanation:

Carbon monoxide reduces the oxygen-carrying capacity of the blood.

Lung diseases are about four times more probable in urban areas as compared to rural areas. This is due to the presence of which of the following in atmosphere?

chemistry air and water pollution control smoke, dust and other air pollutants, acid rain air pollutants and its effects air and air pollution

  1. $CO _{2}$

  2. $NO _{2}$

  3. $O _{2}$

  4. $N _{2}$

Show answer
Correct Option: B
Explanation:

When nitrogen is released, it combines with oxygen and becomes NO, later it combines with oxygen to become $NO _2$. It causes       of lungs, lowers the resistance to respiratory infection. If level increases it causes intense astama on people. Because air pollution is more in urban than in rural areas,  lung diseases are more probable in urban areas.