Tag: environmental economics

Questions Related to environmental economics

Which of the following causes regional pollution?

  1. Smog

  2. Acid rain

  3. $O _3$ layer depletion

  4. Both A and B


Correct Option: D
Explanation:
Smog is formed of smoke and fog and is particularly a pressing problem for large metropolitan cities. The constituents of smog are ground-level ozone, carbon monoxide, nitrogen oxides and volatile organic compounds. The sources of these pollutants are emissions from vehicles, smokestack emission paints etc. 
Acid rain is formed when sulphur dioxide and nitrogen oxides react with water and oxygen forming more acidic pollutant. Areas having industrial abundance are prone to acid rains. The major sources are coal-fired power plants, burning of fossil fuels etc.
Hence, the correct answer is 'Both A and B'

In acid rain, $SO _2$, sulphuric acid accounts for

  1. $100\%$

  2. $30\%$

  3. $50\%$

  4. $70\%$


Correct Option: D
Explanation:

Acid rain is caused by a chemical reaction. Basically, rain that has unusually low pH is called acid rain. The most common chemicals that cause acid rain are sulphur oxides and nitric oxides. These substances rise high in the atmosphere where they react with water, oxygen and other chemicals to form more acidic pollutant. Sulphur dioxide on reaction with water and oxygen forms sulphur trioxide which is rapidly converted into sulphuric acid in presence of water. It accounts for 70% volume in acid rain.

Hence, the correct answer is '70%'.

Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants.
  1. True

  2. False


Correct Option: A
Explanation:
Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen and other chemicals to form more acidic pollutants, known as acid rain.
Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants, aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.

What is an estimated damage caused by acid rain to buildings in USA?

  1. 3 billion $ a Year

  2. 4 billion $ a Year

  3. 9 billion $ a Year

  4. 5 billion $ a Year


Correct Option: D

Acid rain is capable of damaging the buildings and historic monuments which are made up of rocks such as limestone and marble. Which among the following is the end product of such reaction?

  1. Quick Lime

  2. Calcium Carbonate

  3. Calcium Hydroxide

  4. Gypsum


Correct Option: D

In acid rain, water dissolves toxic elements from rocks such as:

  1. Cobalt

  2. Aluminum

  3. Salts

  4. $CO _{2}$


Correct Option: B

Burning of coal produces oxides of sulphur and nitrogen which combined with water vapor leads to

  1. acid rain

  2. brackish water

  3. forest fire

  4. soil pollution


Correct Option: A

Acid deposition causes

  1. the greenhouse effect to lessen

  2. lakes and forests to die

  3. acid indigestion in humans

  4. all the above are correct


Correct Option: B

Acid rain contains

  1. Sulphuric acid

  2. Hydrochloric acid

  3. Oxalic acid

  4. Acetic acid


Correct Option: A

Which two gases involved in formation of acid rain?

  1. Nitrogen and Sulfur

  2. Nitrogen and Carbon

  3. Nitrogen and Oxygen

  4. Nitrogen and Magnesium


Correct Option: A