Fri. Jan 10th, 2025

Global Warming and Change in Atmospheric Chemistry

  1. How much firewood is annually consumed in India for domestic use?

    Options:
    1. 10 million tonnes
    2. 50 million tonnes
    3. 100 million tonnes
    4. 500 million tonnes

    Option: C

  2. What is the main culprit in the formation of smog?

    Options:
    1. Nitrogen oxide
    2. Sulphur dioxide
    3. Carbon monoxide
    4. Ozone

    Option: B

  3. What happens when sulphur dioxide combines with atmospheric oxygen and water films on suspended particulate matter?

    Options:
    1. It forms nitrogen oxide
    2. It forms carbon dioxide
    3. It forms sulphuric acid
    4. It forms ozone

    Option: C

  4. Which gas forms nitric acid, making smog poisonous?

    Options:
    1. Ozone
    2. Carbon monoxide
    3. Nitrous oxide
    4. Sulphur dioxide

    Option: C

  5. What toxic compound does ozone form after reacting with hydrocarbon compounds?

    Options:
    1. Carbon monoxide
    2. Nitrogen oxide
    3. Ethylene
    4. Sulphuric acid

    Option: C

  6. What is the result of trapping air pollutants in a shallow layer over the cities caused by inversion of temperature?

    Options:
    1. The pollutants mix with fog over the cities and industrial areas
    2. The pollutants are blown away from the cities
    3. The pollutants are dissolved in rainwater
    4. The pollutants are absorbed by trees

    Option: A

  7. What is the term for the resultant fog having poisonous air pollutants?

    Options:
    1. Industrial fog
    2. Polluted fog
    3. Acidic fog
    4. Urban smog

    Option: D

  8. What happened during the deadly urban smog of December 1930 in Meuse Valley, Belgium?

    Options:
    1. 600 people fell ill and 63 people died due to respiratory trouble caused by poisonous fog
    2. The pollutants mixed with rainwater and caused floods in the valley
    3. The pollutants were blown away from the valley by strong winds
    4. The valley was evacuated due to the high level of pollution

    Option: A

  9. What caused the deadly smog in Donora, Pennsylvania, in October 1948?

    Options:
    1. Trapping of huge volumes of sulphur dioxide emitted from coke ovens, steel mills, blast furnaces, zinc smelters, and sulphuric acid plants into a stagnant cold air layer
    2. Forest fires in the surrounding areas
    3. A volcanic eruption nearby
    4. Heavy traffic and industrial activity in the city

    Option: A

  10. What is the main cause of death of aquatic life in lakes, ponds, and rivers?

    Options:
    1. Pollution
    2. Acid rains
    3. Overfishing
    4. Climate change

    Option: B

  11. In which country have 50,000 lakes been adversely affected by acid rains?

    Options:
    1. United States of America
    2. Canada
    3. Germany
    4. United Kingdom

    Option: B

  12. How many lakes in Ontario have been declared as dead lakes due to acid rains?

    Options:
    1. 5,000
    2. 140
    3. 50
    4. 250

    Option: B

  13. How many people die every year due to acidic sulphates resulting from the combustion of fossil fuels?

    Options:
    1. About 500-1000
    2. About 10,000-20,000
    3. About 75,000-120,000
    4. About 1 million

    Option: C

  14. What is the effect of acid rains on soil productivity?

    Options:
    1. It enhances soil fertility
    2. It destroys mineral elements and other nutrients in the soil
    3. It has no impact on soil productivity
    4. It leads to soil erosion

    Option: B

  15. What is the term used for the gradual dying of trees or tree branches due to acid rains?

    Options:
    1. Forest depletion
    2. Forest destruction
    3. Dieback of forests
    4. Forest acidification

    Option: C

  16. What happens when the concentration of a particular substance crosses the permissible limit of 10 p.p.m. in the air for 8 hours of exposure?

    Options:
    1. It causes acid rains
    2. It affects the health of those who depend on polluted water
    3. It causes respiratory problems, gum inflammation, internal bleeding, oxygen deficiency, pneumonia, and lung cancer
    4. It causes deadly diseases in human bodies

    Option: C

  17. What is the impact of SO2 pollution on surface and subsurface water storage sources?

    Options:
    1. It causes acid rains
    2. It affects the health of those who depend on polluted water
    3. It causes respiratory problems, gum inflammation, internal bleeding, oxygen deficiency, pneumonia, and lung cancer
    4. It causes deadly diseases in human bodies

    Option: B

  18. What is the effect of Nitric oxide (NO) inhalation?

    Options:
    1. It causes acid rains
    2. It affects the health of those who depend on polluted water
    3. It causes respiratory problems, gum inflammation, internal bleeding, oxygen deficiency, pneumonia, and lung cancer
    4. It causes deadly diseases in human bodies

    Option: C

  19. Which of the following diseases is NOT caused by suspended particulate matter (SPM) emitted from factories and automobiles during fossil fuel combustion and from other industrial processes?

    Options:
    1. Lead poisoning
    2. Asbestosis
    3. Respiratory problems, gum inflammation, internal bleeding, oxygen deficiency, pneumonia, and lung cancer
    4. None of the above

    Option: C

  20. What is the impact of sudden leakages of harmful and poisonous gases from chemical and gas plants?

    Options:
    1. It causes acid rains
    2. It affects the health of those who depend on polluted water
    3. It causes respiratory problems, gum inflammation, internal bleeding, oxygen deficiency, pneumonia, and lung cancer
    4. It causes instant death and has far-reaching consequences on future generations of human beings and microorganisms

    Option: D