Podcast
Questions and Answers
Which option describes an area that is maintained primarily for its primitive character and non-motorized recreation?
Where will water generally reside for the longest time before renewal?
Which of the following is not considered a disadvantage of large dams?
Which energy source provides the least amount of energy for industrialized countries?
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What inhibits the native plant life on Antarctica from thriving?
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Which of the following is not a course outcome of the Environmental Studies program?
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What chapter covers the topic of Environmental Pollution?
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How many total marks are allocated for the chapter on Ecosystem and Biodiversity?
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Which chapter has the highest marks allocated?
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Which statement about recycling is incorrect?
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Which of the following is a technique to reduce Environmental Pollution?
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What is the total number of marks for the Environmental Studies course?
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Which of the following course outcomes focuses on lifelong learning?
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What are the components that form the environment?
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Which layer of the Earth is known as the protective blanket of gases?
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What percentage of the total water supply is available as fresh water?
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The lithosphere consists of which parts of the Earth?
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What source does the atmosphere provide for plant photosynthesis?
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Which process is natural and causes warming of the Earth's surface?
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How is the greenhouse effect primarily experienced on Earth?
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In desert areas, why is there a large difference between day and night temperatures?
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What process produces the radiation energy from the sun?
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Which greenhouse gas has the highest atmospheric lifetime?
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How do volcanic eruptions affect the global greenhouse phenomenon?
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What term describes gas molecules that absorb thermal infrared radiation and influence the climate system?
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Which greenhouse gas is present in very high quantities?
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What is the process called that exchanges outgoing and incoming radiations to keep the Earth warm?
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What would happen to Earth's temperature if the atmosphere did not function like a greenhouse?
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Which of the following waves can pass through the glass walls of a greenhouse?
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Study Notes
Environment
- Recycling: Paper, plastic, and metal can all be recycled, and doing so helps minimize air pollution.
- Ozone (O3): Damaged by reactions with nitrogen oxides (NOx) and sunlight.
- Environment: Consists of four main segments: lithosphere, hydrosphere, biosphere, and atmosphere.
- Lithosphere: Includes the upper mantle and the Earth's crust.
- Hydrosphere: Only 1% of the total water supply is available as freshwater for human use.
- Atmosphere: Acts as a source of oxygen (O2) and carbon dioxide (CO2) for photosynthesis.
- Biosphere: Divided into smaller units called ecosystems.
- Greenhouse Effect: A natural process that warms the Earth's surface, primarily caused by gases like carbon dioxide (CO2) and water vapor (H2O).
- Global Warming: The increase in the Earth's average temperature due to the greenhouse effect.
- Greenhouse Gases (GHGs): Gases that absorb thermal infrared radiation, like carbon dioxide (CO2), water vapor (H2O), methane (CH4), and carbon tetrafluoride (CF4).
- Volcanic Eruptions: Can contribute to the greenhouse phenomenon.
- Infrared Radiation: The type of radiation emitted by the Earth and absorbed by greenhouse gases.
- CFCs (Chlorofluorocarbons): Contribute to the greenhouse effect and ozone layer depletion.
Energy Resources
- Wilderness Area: An area maintained for its primitive character and non-motorized recreation, without permanent roads or settlements.
- Water Renewal Time: Glaciers have the longest water renewal time, meaning the water stays there the longest.
- Big Dams: Disadvantages include high cost, flooding of valuable land, and obstruction of fish migration.
- Energy Sources for Industrialized Countries: Petroleum, coal, and nuclear fuels are the primary energy sources.
- Energy Sources for Developed Countries: Hydropower, solar, wood, and charcoal are important sources of energy, with hydropower being particularly significant.
- Exploited Natural Resources: Water and soil are highly exploited natural resources.
- Estuaries: Also known as "pastures of the sea" due to their rich biodiversity and productivity.
- Antarctic Life: Antarctic plant life is limited by low temperatures and ice.
- Soil: Soil containing multiple soil types is considered a poly pedon.
- Groundwater Depletion: The rate of groundwater depletion is significant but not provided in the text.
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Description
Explore key concepts in Environmental Science, including the processes of recycling, the components of the environment, and the implications of global warming. This quiz covers various elements such as the lithosphere, hydrosphere, atmosphere, and biosphere, as well as the greenhouse effect and its impact on our planet.
