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All questions of Environmental Issues for UGC NET Exam

What was the primary objective behind the implementation of the 'Odd Even Formula' in Delhi ?
  • a)
    To regulate the use of vehicles based on their registration numbers.
  • b)
    To completely ban the use of private vehicles in the city.
  • c)
    To implement a congestion pricing scheme for vehicles.
  • d)
    To improve public transportation infrastructure in the city.
Correct answer is option 'A'. Can you explain this answer?

Scholars Academy answered
The 'Odd-Even Formula' in Delhi was introduced as a measure to address the severe air pollution crisis faced by the city. Under this scheme, vehicles were allowed to ply on city roads based on whether their registration numbers were odd or even. This initiative aimed to reduce vehicular emissions and subsequently lower the pollution levels in the city. While the scheme showed mixed results, it did lead to significant reductions in PM 2.5 concentrations, contributing to a healthier environment and increased public awareness about the impacts of air pollution on human health.
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What health issues can arise from exposure to arsenic-contaminated water?
  • a)
    Skin cancer and respiratory disorders
  • b)
    Liver damage and vascular disease
  • c)
    Nervous system disorders and kidney damage
  • d)
    Dermatitis and bronchitis
Correct answer is option 'B'. Can you explain this answer?

Scholars Academy answered
Exposure to arsenic-contaminated water can lead to various health problems, including liver damage and vascular disease. Arsenic poisoning through water ingestion is a significant concern as it can have detrimental effects on the liver and the vascular system. Long-term exposure to arsenic can result in serious health issues, making it crucial to monitor and mitigate arsenic contamination in water sources to protect public health.

What is the primary difference between point source pollution and non-point source pollution in water bodies?
  • a)
    Point source pollution results from specific sources discharging harmful substances, while non-point source pollution stems from pollutants entering water bodies from larger areas.
  • b)
    Point source pollution is caused by industrial activities, while non-point source pollution is primarily from agricultural practices.
  • c)
    Point source pollution is easier to control and regulate compared to non-point source pollution.
  • d)
    Non-point source pollution is always more harmful to aquatic life than point source pollution.
Correct answer is option 'A'. Can you explain this answer?

Scholars Academy answered
Point source pollution and non-point source pollution are two distinct types of water pollution. Point source pollution originates from identifiable sources that discharge harmful substances directly into water bodies, such as industrial wastewater or hot water from thermal power plants. In contrast, non-point source pollution arises from diffuse sources like surface runoff from agricultural fields or municipal wastewater. The key disparity lies in the pinpointed versus broad origins of these pollutants, making point source pollution easier to trace and regulate compared to non-point source pollution.

What is the primary concept behind Frédéric Sorrieu's vision of a world composed of democratic and Social Republics?
  • a)
    The rise of absolutist institutions in Europe and America
  • b)
    The emergence of the nation-state through nationalism in the 19th century
  • c)
    The symbolic representation of fraternity among different nations
  • d)
    The artistic portrayal of the Storming of Bastille in France
Correct answer is option 'C'. Can you explain this answer?

Scholars Academy answered
Frédéric Sorrieu's vision of a world made up of democratic and Social Republics primarily aims to depict a symbolic representation of fraternity among different nations. In his print, he portrays people from various nations moving together, led by symbols of liberty and enlightenment, with religious figures overseeing the scene. This representation underscores the artist's aspiration for unity, peace, and collaboration among nations.

What are the main pollutants considered in the National Air Quality Index (NAQI) for measuring air quality in India?
  • a)
    Carbon dioxide and methane
  • b)
    Particulate matter and lead
  • c)
    Nitrogen oxides and sulphur dioxide
  • d)
    Ozone and ammonia
Correct answer is option 'C'. Can you explain this answer?

Scholars Academy answered
The National Air Quality Index (NAQI) in India measures air quality based on pollutants like PM10, PM2.5, NO2, SO2, CO, Ozone, Ammonia, and Lead. These pollutants play a significant role in determining the quality of the air we breathe. Nitrogen oxides (NO2) and sulphur dioxide (SO2) are among the key pollutants monitored due to their detrimental effects on human health and the environment.

Chapter doubts & questions for Environmental Issues - 3 Months Preparation for UGC NET Paper 1 2025 is part of UGC NET exam preparation. The chapters have been prepared according to the UGC NET exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for UGC NET 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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