Understanding Environmental Sustainability Quiz
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Questions and Answers

What is the main concept of environmental sustainability?

  • Using renewable resources slower than nonrenewable substitutes
  • Using nonrenewable resources slower than renewable substitutes (correct)
  • Using nonrenewable resources faster than renewable substitutes
  • Using renewable resources faster than nonrenewable substitutes

What is the most severe indoor pollution source according to the text?

  • Indoor plants
  • Use of electronic devices
  • Heating and cooking (fire) without adequate ventilation (correct)
  • Cleaning products

Which of the following is mentioned as a source of outdoor air pollution?

  • Industrial waste management
  • Ocean currents
  • Energy generation (correct)
  • Agricultural practices

What does the term 'flow resource' refer to in the context of water pollution?

<p>Water as a renewable source with a sustainable yield (A)</p> Signup and view all the answers

What contributes to water stress according to the text?

<p>Population growth and energy utilization (A)</p> Signup and view all the answers

What does environmental sustainability aim to achieve in terms of pollution and wastes?

<p>Emitting pollution and wastes no faster than natural systems can absorb or recycle them (D)</p> Signup and view all the answers

What is the relationship between rate of consumption and rate of production in environmental sustainability?

<p>Rate of consumption should be less than rate of production for sustainability (D)</p> Signup and view all the answers

What is meant by 'water stress' according to the text?

<p>Pressure on freshwater resources due to population growth and energy utilization. (D)</p> Signup and view all the answers

What is the primary cause of more than 2 million premature deaths each year according to the text?

<p>Indoor and outdoor air pollution. (D)</p> Signup and view all the answers

How has outdoor air pollution been reduced by many countries according to the text?

<p>By laws regulating emissions. (D)</p> Signup and view all the answers

What are the two main classifications of solar energy?

<p>Thermal and electric (B)</p> Signup and view all the answers

Which type of solar PV cell is commonly used for household applications due to its efficiency?

<p>Monocrystalline silicon (C)</p> Signup and view all the answers

What is the main difference between solar photovoltaics (PV) and concentrated solar power (CSP)?

<p>PV directly converts solar energy into electricity, while CSP uses lenses or mirrors to concentrate sunlight into a smaller area. (A)</p> Signup and view all the answers

What are the pros of solar energy mentioned in the text?

<p>Renewability, lack of emissions, and reduced fossil fuel consumption (C)</p> Signup and view all the answers

How can solar thermal energy be used for cooling?

<p>Through the use of Li-Br or ammonia solutions (C)</p> Signup and view all the answers

What are the types of solar water heaters mentioned in the text?

<p>Evacuated tube collectors, glazed flat plate collectors, and unglazed flat plate collectors (B)</p> Signup and view all the answers

What is the approximate amount of solar energy received in a plane perpendicular to the rays?

<p>1,377 W/m2 (D)</p> Signup and view all the answers

What is the main source of solar energy?

<p>The sun (B)</p> Signup and view all the answers

What environmental issue is caused by climate change according to the text?

<p>Flooding and desertification (A)</p> Signup and view all the answers

For sustainable living, what type of energy sources should be used according to the text?

<p>Renewable energy sources such as wind, solar, water, and tidal (B)</p> Signup and view all the answers

What is the ultimate source driving wind energy?

<p>Solar radiation (A)</p> Signup and view all the answers

What percentage of total solar radiation received by Earth is converted to kinetic energy for wind energy?

<p>1% (B)</p> Signup and view all the answers

What is geothermal energy?

<p>Thermal energy stored and generated in the Earth (C)</p> Signup and view all the answers

What is bioenergy derived from?

<p>Renewable, biological sources such as biomass (C)</p> Signup and view all the answers

What percentage of US renewable energy comes from bioenergy derived fuels?

<p>~50% (B)</p> Signup and view all the answers

What has been the most common use of bioenergy growth in the past decade in the US?

<p>Ethanol feedstock (D)</p> Signup and view all the answers

What are homes like Aviator’s Villa and Container Guest House made from?

<p>Recycled airplane parts and eco-friendly waste materials (A)</p> Signup and view all the answers

What is the main purpose of sustainable constructions worldwide mentioned in the text?

<p>To minimize environmental impact and promote recycling (D)</p> Signup and view all the answers

What is 'Parting of the Sea' made of?

<p>Concrete and steel (A)</p> Signup and view all the answers

Flashcards

Climate change and water sources

Climate change affects water sources through extreme events and desertification, causing both floods and droughts.

Renewable energy

Renewable energy sources are those that are naturally replenished and not depleted, such as wind, solar, water, and tidal.

Solar energy

Solar energy is a renewable source that harnesses the sun's power to provide heat, light, hot water, electricity, and even cooling.

What is solar energy?

Solar energy is a form of electromagnetic radiation emitted by the sun, a massive star located about 1.5 x 10^11 meters away.

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How much solar energy reaches Earth?

Solar energy reaches Earth as electromagnetic radiation, delivering about 1,377 W/m2 perpendicular to the rays and reaching the surface with about 8.9 x 10^16 W.

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Types of solar energy

Solar energy is categorized as thermal or electric. Thermal energy is used for heating, while electric energy is generated using solar photovoltaics (PV) or concentrated solar power (CSP).

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Solar water heating

Solar water heaters utilize evacuated tube collectors, glazed flat plate collectors, or unglazed flat plate collectors to harness solar energy for water heating.

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Solar cooling

Solar thermal energy can also be used for cooling through the use of Li-Br or ammonia solutions.

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Solar photovoltaics (PV)

Solar photovoltaics (PV) directly convert sunlight into electricity using semiconductors and the photovoltaic effect.

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Types of solar PV cells

There are three types of solar PV cells: monocrystalline silicon, polycrystalline silicon, and thin film amorphous-silicon. Monocrystalline silicon cells are the most efficient and are commonly used in homes.

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Concentrated Solar Power (CSP)

Concentrated solar power (CSP) uses lenses or mirrors to focus sunlight onto a concentrated area, generating electricity via a heat engine.

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Safety of solar energy technologies

Solar PV cells are considered safer than CSP systems because they don't produce high temperatures or require a power plant.

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Advantages and disadvantages of solar energy

Solar energy has many advantages, including its renewability, zero emissions, and reduced fossil fuel dependency. However, its dependence on sunlight and weather conditions are drawbacks.

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Study Notes

  • Climate change is causing water source issues through flooding and desertification (FARAH M. AL-DUWEESH)
  • To live sustainably, renewable energy sources should be used, which are not depletable and include wind, solar, water, and tidal (FARAH M. AL-DUWEESH)
  • Solar energy is a renewable energy source that can be used to provide heat, light, hot water, electricity, and even cooling for homes and businesses (FARAH M. AL-DUWEESH)
  • The sun, a massive star, is the source of solar energy and is about 1.5 x1011 m away from Earth with a diameter of 1.39x109 m and a mass of 2x1030 kg (FARAH M. AL-DUWEESH)
  • Solar energy reaches the Earth's surface as electromagnetic radiation, with about 1,377 W/m2 received in a plane perpendicular to the rays, and about 8.9x1016 W reaching the Earth's surface (FARAH M. AL-DUWEESH)
  • Solar energy can be classified as thermal or electric, with thermal energy used for water heating, and electric energy generated through solar photovoltaics (PV) or concentrated solar power (CSP) (FARAH M. AL-DUWEESH)
  • Solar water heaters, such as evacuated tube collectors, glazed flat plate collectors, and unglazed flat plate collectors, are common ways to use solar energy for water heating (FARAH M. AL-DUWEESH)
  • Solar thermal energy can also be used for cooling through the use of Li-Br or ammonia solutions (FARAH M. AL-DUWEESH)
  • Solar photovoltaics (PV) use semiconductors and the photovoltaic effect to directly convert solar energy into electricity (FARAH M. AL-DUWEESH)
  • Monocrystalline silicon, polycrystalline silicon, and thin film amorphous-silicon are the three types of solar PV cells, with monocrystalline cells being the most efficient and commonly used for household applications (FARAH M. AL-DUWEESH)
  • Concentrated solar power (CSP) uses lenses or mirrors to concentrate sunlight into a smaller area, which is then used to generate electricity through the use of a heat engine (FARAH M. AL-DUWEESH)
  • Solar PV cells are safer than CSP systems as they do not produce high temperatures or require a power plant (FARAH M. AL-DUWEESH)
  • Pros of solar energy include its renewability, lack of emissions, and reduced fossil fuel consumption, while cons include its dependence on sunlight and weather trends (FARAH M. AL-DUWEESH)

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Test your knowledge and understanding of environmental sustainability with this quiz. Explore the concept of sustainability, nonrenewable resources, and renewable substitutes to make our environment more sustainable.

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