Chapter 17 Air Pollution And Global Changes

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  • 1/20 Questions

    Acid Precipitation, Ozone Depletion and Global Warming are all kinds of Global Changes.

    • True
    • False
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About This Quiz

Explore the complexities of Earth's atmosphere and its impact on global conditions through 'Chapter 17 Air Pollution and Global Changes'. This quiz assesses knowledge on atmospheric layers, the ozone layer, and the effects of pollutants like CFCs, essential for understanding environmental science.

Air Pollution Quizzes & Trivia

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  • 2. 

    Rain or snow that is more acidic than normal precipitation is called acid precipitation.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Acid precipitation refers to rain or snow that has a higher acidity level than normal precipitation. This can occur due to human activities such as burning fossil fuels, which release pollutants like sulfur dioxide and nitrogen oxides into the atmosphere. These pollutants then react with water vapor to form sulfuric acid and nitric acid, resulting in acid precipitation. This phenomenon can have harmful effects on the environment, including damage to forests, lakes, and buildings. Therefore, the given statement that acid precipitation is rain or snow that is more acidic than normal precipitation is true.

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  • 3. 

    Air circulation in buildings is often poor

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Air circulation in buildings is often poor due to several factors. One reason is the lack of proper ventilation systems, which can lead to stagnant air and a buildup of pollutants. Additionally, the design and layout of buildings can contribute to poor air circulation. For example, closed-off rooms or narrow hallways can restrict the flow of air. Insufficient air circulation can result in uncomfortable indoor environments, increased humidity levels, and the potential for the spread of airborne contaminants. Therefore, it is true that air circulation in buildings is often poor.

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  • 4. 

    Where can CFCs be found?

    • Refrigerators

    • Air conditioners

    • Aerosol sprays

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    CFCs, or chlorofluorocarbons, can be found in refrigerators, air conditioners, and aerosol sprays. These chemicals were commonly used as refrigerants and propellants in these products. However, CFCs are harmful to the ozone layer and contribute to ozone depletion. As a result, their use has been phased out in many countries. Therefore, the correct answer is "all of the above" as CFCs can be found in all of these mentioned sources.

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  • 5. 

    Ice cores contain air bubbles that have been trapped in the ice for 100’s or 1000’s of years

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Ice cores are cylindrical samples of ice that are drilled from ice sheets or glaciers. These ice cores contain air bubbles that have been trapped within the ice as it formed over hundreds or thousands of years. These air bubbles are valuable because they provide a record of the Earth's past atmosphere, allowing scientists to study changes in greenhouse gas concentrations, climate patterns, and even atmospheric composition. Therefore, the statement that ice cores contain air bubbles trapped for 100's or 1000's of years is true.

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  • 6. 

    Which layer of the atmosphere contains the ozone layer?

    • Troposphere

    • Thermosphere

    • Stratosphere

    • Exosphere

    Correct Answer
    A. Stratosphere
    Explanation
    The ozone layer is located in the stratosphere. This layer is situated above the troposphere, which is the layer closest to the Earth's surface. The stratosphere is characterized by its higher altitude and contains a high concentration of ozone molecules. These ozone molecules play a crucial role in absorbing and filtering out harmful ultraviolet (UV) radiation from the sun, making the stratosphere an important layer for protecting life on Earth.

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  • 7. 

    What is the cause of ozone depletion

    • Nitrogen & Suflur Oxides

    • Carbon Dioxide

    • CFC's

    Correct Answer
    A. CFC's
    Explanation
    CFCs, or chlorofluorocarbons, are the cause of ozone depletion. When released into the atmosphere, CFCs break down and release chlorine atoms. These chlorine atoms then react with ozone molecules, breaking them apart and depleting the ozone layer. This process is known as ozone depletion. Nitrogen and sulfur oxides, as well as carbon dioxide, do not directly cause ozone depletion.

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  • 8. 

    What have CFCs done to Earth and its atmosphere?

    • They have created a hole in the ozone layer.

    • They have caused more ultraviolet radiation to reach Earth.

    • They have caused the number of cancer cases to rise.

    • All of above

    Correct Answer
    A. All of above
    Explanation
    CFCs (chlorofluorocarbons) have had multiple negative effects on Earth and its atmosphere. Firstly, they have created a hole in the ozone layer, which is a protective layer that shields Earth from harmful ultraviolet (UV) radiation. Secondly, CFCs have caused more UV radiation to reach Earth, leading to increased risks of skin cancer and other health issues. Lastly, the release of CFCs has contributed to the rise in the number of cancer cases. Therefore, all of the given options are correct, as they accurately describe the detrimental impacts of CFCs on Earth and its atmosphere.

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  • 9. 
    What form of energy transfer heats Earth? - ProProfs

    What form of energy transfer heats Earth?

    • Radiation

    • Conduction

    • Convention

    • Recycling

    Correct Answer
    A. Radiation
    Explanation
    Radiation is the correct answer because it is the form of energy transfer that heats the Earth. Radiation refers to the emission of electromagnetic waves, including heat, from a source. The Sun emits radiation, which reaches the Earth and warms its surface. This process is known as solar radiation. The heat from the Earth's surface is then transferred to the surrounding air through conduction and convection, but the initial source of heating is radiation.

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  • 10. 

    Which layer protects Earth's life from harmful UV radiation?

    • Stratosphere

    • Troposphere

    • Thermosphere

    Correct Answer
    A. Stratosphere
    Explanation
    The stratosphere is the layer of the Earth's atmosphere that contains the ozone layer. The ozone layer plays a crucial role in protecting life on Earth from harmful ultraviolet (UV) radiation. UV radiation from the sun can cause various health issues, including skin cancer and cataracts. The ozone layer absorbs and filters out most of the UV radiation, preventing it from reaching the Earth's surface. Therefore, the stratosphere is responsible for shielding the planet and its inhabitants from the harmful effects of UV radiation.

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  • 11. 

    What is an increase in Earth's average surface temperature caused by an increase in greenhouse gases?

    • Greenhouse Effect

    • Global Warming

    • Global Dimming

    Correct Answer
    A. Global Warming
    Explanation
    Global warming refers to the increase in Earth's average surface temperature caused by an increase in greenhouse gases. These gases, such as carbon dioxide and methane, trap heat in the atmosphere, leading to a rise in temperatures. This phenomenon has significant implications for the planet, including the melting of polar ice caps, rising sea levels, and extreme weather events. The term "greenhouse effect" refers to the mechanism by which greenhouse gases trap heat, while "global dimming" refers to the reduction in sunlight reaching the Earth's surface due to pollution, which has a cooling effect.

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  • 12. 

    How many layers does Earth's atmosphere have?

    • 6

    • 5

    • 4

    • 7

    Correct Answer
    A. 5
    Explanation
    The Earth's atmosphere is divided into five main layers: the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. Each layer has distinct characteristics and plays a different role in the Earth's climate and weather patterns. The troposphere is the closest layer to the Earth's surface and contains most of the Earth's weather. The stratosphere contains the ozone layer, which protects against harmful ultraviolet radiation. The mesosphere is the layer where meteors burn up upon entering the atmosphere. The thermosphere is the layer where the Northern and Southern Lights occur. The exosphere is the outermost layer, where the atmosphere gradually merges with outer space.

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  • 13. 

    Within which layer of the atmosphere do you find rain, snow, and clouds?

    • Troposphere

    • Stratosphere

    • Mesosphere

    • Thermosphere

    Correct Answer
    A. Troposphere
    Explanation
    Rain, snow, and clouds are found in the troposphere. The troposphere is the lowest layer of the Earth's atmosphere, extending from the surface up to about 10-15 kilometers. This layer is where weather phenomena occur, including the formation of clouds, precipitation in the form of rain or snow, and various atmospheric processes. The temperature decreases with altitude in the troposphere, allowing water vapor to condense and form clouds, leading to the occurrence of rain and snow.

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  • 14. 

    When did the scientists discovery the thinning of the ozone near the South Pole?

    • 1890

    • 1980

    • 1950

    • 1930

    Correct Answer
    A. 1980
    Explanation
    In 1980, scientists discovered the thinning of the ozone near the South Pole. This discovery was significant as it led to further research and understanding of the depletion of the ozone layer, which plays a crucial role in protecting the Earth from harmful ultraviolet radiation. The thinning of the ozone layer was primarily caused by the release of chlorofluorocarbons (CFCs) and other ozone-depleting substances into the atmosphere. This discovery prompted international efforts to reduce the production and use of these substances through the implementation of the Montreal Protocol in 1987.

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  • 15. 

    What would happen if Earth had no atmosphere?

    • The days would be cold and the nights would be hot.

    • The days would be hot and the nights would be cold.

    • Earth would not have days.

    • Earth would not have nights.

    Correct Answer
    A. The days would be hot and the nights would be cold.
    Explanation
    If Earth had no atmosphere, there would be no air to trap heat from the sun during the day or to insulate the planet at night. As a result, the days would be hot because there would be no atmosphere to block or absorb the sun's rays, causing temperatures to rise significantly. On the other hand, during the night, without the atmosphere to retain heat, the planet would rapidly lose heat, leading to cold temperatures. Therefore, the correct answer is that the days would be hot and the nights would be cold.

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  • 16. 

    Indoor air can contain very low levels of pollution

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Indoor air can contain very high levels of pollution, not low levels. This is because various sources such as cooking, cleaning products, smoking, and building materials can release pollutants into the air, leading to poor indoor air quality. It is important to properly ventilate and maintain indoor spaces to minimize pollution and ensure a healthy living environment.

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  • 17. 

    What is a colorless, odorless, radioactive gas that enters homes from the soil through the basement?

    • Oxygen

    • Radon

    • Nitrogen

    Correct Answer
    A. Radon
    Explanation
    Radon is a colorless, odorless, and radioactive gas that can enter homes from the soil through the basement. It is a naturally occurring gas that is produced by the breakdown of uranium in soil, rocks, and water. Radon is known to be a leading cause of lung cancer and can accumulate to dangerous levels in indoor spaces. Therefore, it is important to test for radon levels in homes and take necessary measures to mitigate its presence.

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  • 18. 

    What is the cause of Global Warming?

    • CFC's

    • Carbon Dioxide & Methane

    • Nitrogen

    Correct Answer
    A. Carbon Dioxide & Methane
    Explanation
    The cause of global warming is primarily attributed to the increase in carbon dioxide and methane emissions. These greenhouse gases trap heat in the Earth's atmosphere, leading to a rise in global temperatures. Carbon dioxide is released through the burning of fossil fuels and deforestation, while methane is produced by livestock, agriculture, and the extraction of fossil fuels. The accumulation of these gases in the atmosphere creates a greenhouse effect, intensifying the Earth's natural greenhouse effect and causing global warming.

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  • 19. 
    What preceded the growth and survival of green plants on Earth? - ProProfs

    What preceded the growth and survival of green plants on Earth?

    • The formation of the solar system

    • The formation of an ozone layer

    • The formation of severe weather

    • Human life

    Correct Answer
    A. The formation of an ozone layer
    Explanation
    The formation of an ozone layer preceded the growth and survival of green plants on Earth. The ozone layer acts as a shield, protecting the Earth's surface from harmful ultraviolet (UV) radiation from the sun. This UV radiation can be damaging to living organisms, including green plants. With the formation of the ozone layer, green plants were able to thrive and survive on Earth as they were protected from the harmful effects of UV radiation.

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  • 20. 

    How do CFCs destroy ozone?

    • A carbon atom from a CFC combines with one oxygen from ozone and leaves a two-atom oxygen molecule.

    • A chlorine atom from a CFC combines with two oxygen atoms from ozone and leaves an oxygen atom.

    • A CFC combines with a three-atom oxygen molecule.

    • A chlorine atom from a CFC combines with one oxygen from ozone and leaves a two- atom oxygen molecule.

    Correct Answer
    A. A chlorine atom from a CFC combines with one oxygen from ozone and leaves a two- atom oxygen molecule.
    Explanation
    CFCs destroy ozone by a process called ozone depletion. In this process, a chlorine atom from a CFC molecule reacts with one oxygen atom from an ozone molecule. This reaction forms a chlorine oxide molecule and leaves behind a two-atom oxygen molecule. The chlorine oxide molecule can then react with another ozone molecule, leading to the destruction of ozone. This process is repeated multiple times, resulting in the depletion of the ozone layer.

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  • Current Version
  • Mar 19, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 02, 2011
    Quiz Created by
    Only_u
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