Daily Quiz – 14th Feb 2024 By adminFebruary 19, 2024Quiz Daily Quiz - 14th Feb 2024 Daily Quiz - 14th Feb 2024 1 / 5 Consider the following statements regarding ammonia pollution:Higher temperature is responsible for the reduction in ammonia pollution.The Indus and the Indo Gangetic plains have recently been identified as the hotspot of ammonia pollution.Increased precipitation aggravates the level of ammonia pollution in the environment.Which of the statements given above are incorrect? 1 and 2 only 2 and 3 only 1 and 3 only 1, 2 and 3 Statement 1 and 2 are incorrect: As per a study conducted by IIT Kharagpur, the Indo-Gangetic Plains have been identified as a hotspot of the Ammonia Pollution. Ammonia forms an important part of agriculture and fertilizer use. Excessive use of fertilizers causes the addition of ammonia in the environment. It has a positive correlation with the temperature. Greater the temperature more is the volatilization of the used fertilizer and hence more is the use of fertilizers leading to greater pollution.Trivia: The study did not mention the Indus basin.Statement 3 is incorrect: Increased precipitation reduces the agricultural emissions as greater precipitation is more the removal of pollutants like ammonia. Therefore, there is a negative correlation between the agricultural emissions and the total precipitation. Statement 1 and 2 are incorrect: As per a study conducted by IIT Kharagpur, the Indo-Gangetic Plains have been identified as a hotspot of the Ammonia Pollution. Ammonia forms an important part of agriculture and fertilizer use. Excessive use of fertilizers causes the addition of ammonia in the environment. It has a positive correlation with the temperature. Greater the temperature more is the volatilization of the used fertilizer and hence more is the use of fertilizers leading to greater pollution.Trivia: The study did not mention the Indus basin.Statement 3 is incorrect: Increased precipitation reduces the agricultural emissions as greater precipitation is more the removal of pollutants like ammonia. Therefore, there is a negative correlation between the agricultural emissions and the total precipitation. 2 / 5 Consider the following pairs:Technology - Main targeted pollutantFlue gas desulphurization - Hydrogen sulfideSelective catalytic reduction - AmmoniaElectrostatic precipitator - SmokeScrubbers - Dust and gas particlesWhich of the statements given above is/are correctly matched? 1 and 4 only 1 and 3 only 3 and 4 only 2, 3, and 4 only Statement 1 is Incorrect: Flue Gas Desulfurization is a technology to remove Sulphur dioxide from the gases emitted from the fossil fuel-power plants. It can be done with a wet or dry process. Dry Flue gas Desulfurization uses lime as a reactive agent to remove the flue gases from the exhaust gases. Wet Flue gas Desulfurization involves the use of lime slurry which absorbs the pollutants from the flue gases.Statement 2 is Incorrect: Selective catalytic reduction is a technique to remove Nitrogen Dioxide from the flue gases. It uses liquid Ammonia for this process as a reducing agent. Hence, Ammonia is responsible as a reacting agent whereas Nitrogen Dioxide is the pollutant which is removed through this process. It is an expensive process.Statement 3 is Correct: Electrostatic precipitator involves the removal of particles like smoke and dust particles. It makes use of the force that is created using the electrostatic charge that removes the dust and smoke when the gas containing these is passed through the unit.Statement 4 is Correct: Scrubbers is a technology that removes particulate matter from gases. It removes both the dust and gases when a polluted gas is passed through the dry and wet packaging material. Statement 1 is Incorrect: Flue Gas Desulfurization is a technology to remove Sulphur dioxide from the gases emitted from the fossil fuel-power plants. It can be done with a wet or dry process. Dry Flue gas Desulfurization uses lime as a reactive agent to remove the flue gases from the exhaust gases. Wet Flue gas Desulfurization involves the use of lime slurry which absorbs the pollutants from the flue gases.Statement 2 is Incorrect: Selective catalytic reduction is a technique to remove Nitrogen Dioxide from the flue gases. It uses liquid Ammonia for this process as a reducing agent. Hence, Ammonia is responsible as a reacting agent whereas Nitrogen Dioxide is the pollutant which is removed through this process. It is an expensive process.Statement 3 is Correct: Electrostatic precipitator involves the removal of particles like smoke and dust particles. It makes use of the force that is created using the electrostatic charge that removes the dust and smoke when the gas containing these is passed through the unit.Statement 4 is Correct: Scrubbers is a technology that removes particulate matter from gases. It removes both the dust and gases when a polluted gas is passed through the dry and wet packaging material. 3 / 5 In the context of the coal used by the Thermal Power Plants (TPP), consider the following statements:It is mandatory for a TPP to use coal with less than 34% of its ash content.Higher ash content in coal increases the per unit generation of power.Which of the statements given above is/are correct? 1 only 2 only Both 1 and 2 Neither 1 nor 2 Statement 1 is incorrect: A 2014 regulation of the Environmental ministry made it mandatory for the coal-based Thermal Power Plants to use coal with not more than 34% of the ash content.It was mandated to the coal producers to remove the impurities before transporting the coal to the Thermal power plants. However, it caused the Thermal power plants to import coal as Indian coal has a high ash content of around 40 to 45%.A recent regulation made by the Ministry of Environment has allowed Thermal Power Plants to use coal irrespective of the ash content.Hence, the recent regulation is opposite of the 2014 regulation. Therefore, there is no limit on the ash content of the coal to be used by the Thermal Power Plants at present.Statement 2 is incorrect: The Indian coal has a higher ash content of around 40 to 45%. The greater the ash content the more is the amount of coal required to produce the same amount of energy. Hence, greater ash content decreases the per unit output of the energy. It requires greater amounts of coal to be burnt and hence creates more pollution. Statement 1 is incorrect: A 2014 regulation of the Environmental ministry made it mandatory for the coal-based Thermal Power Plants to use coal with not more than 34% of the ash content.It was mandated to the coal producers to remove the impurities before transporting the coal to the Thermal power plants. However, it caused the Thermal power plants to import coal as Indian coal has a high ash content of around 40 to 45%.A recent regulation made by the Ministry of Environment has allowed Thermal Power Plants to use coal irrespective of the ash content.Hence, the recent regulation is opposite of the 2014 regulation. Therefore, there is no limit on the ash content of the coal to be used by the Thermal Power Plants at present.Statement 2 is incorrect: The Indian coal has a higher ash content of around 40 to 45%. The greater the ash content the more is the amount of coal required to produce the same amount of energy. Hence, greater ash content decreases the per unit output of the energy. It requires greater amounts of coal to be burnt and hence creates more pollution. 4 / 5 In the context of air pollution, which of the statements given below is/are incorrect?Aluminium silicate is a major component of fly ash.Replacing cement with fly ash aggravates the pollution levels.Fly ash largely hampers the productivity of the crops.Select the correct answer using the codes given below: 1 and 2 only 2 and 3 only 1 and 3 only 1, 2 and 3 Statement 1 is correct: Fly ash is the fine gray powder which is a by-product of coal-fired power station. Its major component is Aluminum Silicate. Other components include Silicon dioxide, Calcium oxide, etc.Statement 2 is incorrect: Fly ash is light in weight and durable with higher strength. It can be used as a material for filling up roads etc. Hence, one of the most important advantages of fly ash is that it can be used in place of cement in the road construction works. Replacing cement with fly ash will decrease the pollution levels.Statement 3 is incorrect: Fly ash can also be used for the reclamation of the wastelands. It can enhance the productivity of the crops and enhance the moisture holding capacity of the land. It can cause air and water pollution problems if not disposed of properly. Electrostatic precipitators are mainly used in the chimneys of the coal fired power plants to remove the fly ash before being released in the atmosphere. Statement 1 is correct: Fly ash is the fine gray powder which is a by-product of coal-fired power station. Its major component is Aluminum Silicate. Other components include Silicon dioxide, Calcium oxide, etc.Statement 2 is incorrect: Fly ash is light in weight and durable with higher strength. It can be used as a material for filling up roads etc. Hence, one of the most important advantages of fly ash is that it can be used in place of cement in the road construction works. Replacing cement with fly ash will decrease the pollution levels.Statement 3 is incorrect: Fly ash can also be used for the reclamation of the wastelands. It can enhance the productivity of the crops and enhance the moisture holding capacity of the land. It can cause air and water pollution problems if not disposed of properly. Electrostatic precipitators are mainly used in the chimneys of the coal fired power plants to remove the fly ash before being released in the atmosphere. 5 / 5 Consider the following factors of environmental pollution:RadioactivityHeavy metal saltsGlassPollen from plantsStratospheric ozoneWhich of the above factors contribute to environmental pollution? 1, 3, 4, and 5 2, 3, and 4 1, 2, 3, and 4 1, 2, 3, 4, and 5 Option C is correct: Environmental pollution refers to the addition of undesirable materials into the environment making it unfit for life. Some of the major pollutants present in the environment include Carbon monoxide, carbon dioxide, Chlorofluorocarbons, Lead, etc.Pollutants are classified into different types depending upon origin, existence, disposal etc.They can be natural or anthropogenic based on their origin.Based on their disposal, they can be either biodegradable or non-biodegradable. Radioactive substances, Salts of heavy metals, glass, plastic, etc. are some of the examples of the non-biodegradable pollutants. They cannot be decomposed by way of microbial actions.Ozone occurring at the ground level also acts as a pollutant. But not stratospheric Ozone rather it important for shielding the earth from the harmful ultraviolet rays of the sun.Pollutants might occur from biological sources like fungi, parasites, and pollen from plants. They are usually responsible for causing asthma and allergies. Option C is correct: Environmental pollution refers to the addition of undesirable materials into the environment making it unfit for life. Some of the major pollutants present in the environment include Carbon monoxide, carbon dioxide, Chlorofluorocarbons, Lead, etc.Pollutants are classified into different types depending upon origin, existence, disposal etc.They can be natural or anthropogenic based on their origin.Based on their disposal, they can be either biodegradable or non-biodegradable. Radioactive substances, Salts of heavy metals, glass, plastic, etc. are some of the examples of the non-biodegradable pollutants. They cannot be decomposed by way of microbial actions.Ozone occurring at the ground level also acts as a pollutant. But not stratospheric Ozone rather it important for shielding the earth from the harmful ultraviolet rays of the sun.Pollutants might occur from biological sources like fungi, parasites, and pollen from plants. They are usually responsible for causing asthma and allergies. Your score isThe average score is 0% 0% Restart quiz