Assertion (A) : Indian towns and cities have high air pollution levels.
Reason (R) : High air pollution levels are due to high presence of automobiles and high density of population.
Codes :
Assertion (A) Analysis
The assertion states that Indian towns and cities experience high air pollution levels. This is a well-documented fact, with many urban areas in India frequently exceeding national and international air quality standards. Therefore, Assertion (A) is true.
Reason (R) Analysis
The reason attributes high air pollution levels to the high presence of automobiles and a high density of population.
- Automobiles: Vehicle emissions (like NOx, PM2.5, CO) are a significant source of air pollution, especially in urban settings.
- Population Density: Higher population density often correlates with increased vehicular traffic, higher energy consumption, and more concentrated waste generation, all contributing to pollution.
Both factors mentioned in Reason (R) are indeed major contributors to air pollution. Thus, Reason (R) is true.
Relationship Between Assertion and Reason
While the high presence of automobiles and dense population contribute significantly to the air pollution mentioned in Assertion (A), they do not solely or completely explain the phenomenon. Other major factors also contribute to high air pollution levels in Indian cities, including:
- Industrial emissions
- Construction dust
- Agricultural burning (seasonal)
- Waste burning
- Geographical and meteorological conditions
Because Reason (R) only highlights some causes and implies they are the primary or sole reasons, it is not the *correct* or complete explanation for Assertion (A), even though both statements are factually true.
Conclusion
Based on the analysis, both Assertion (A) and Reason (R) are true statements. However, Reason (R) does not fully explain Assertion (A) as it omits other significant contributing factors to air pollution in Indian urban areas.
This corresponds to Option 2: Both (A) and (R) are true, but (R) is not the correct explanation of (A).
Important Questions from Environmental pollution
Which one of the following is a major environmental issue in eastern Canada?
One of the main causes of air pollution in cities is emissions from vehicles like cars and trucks. Cars emit various pollutants which are bad for human health when inhaled, like
1) Nitrogen oxides (NO x)
2) Carbon monoxide (CO)
3) Carbon dioxide (CO 2)
4) Benzene
Which of the above pollutants are not tolerated by human beings even at very low levels?Which of the following substances are harmful for health if present in food items?
1) Pesticide residues
2) Lead
3) Metanil yellow
4) Mercury
Select the correct answer using the code given below:
Which of the commonly used household item(s) release Bisphenol A (BPA) which is an endocrine disruptor and bad for human health?
1. Steel utensils
2. Plastic coffee mugs
3. Aluminium utensils
4. Plastic water storage bottles
Select the correct answer using the code given below:Which one of the following is a cause of acid rains?
