Earth System Science Unit 3
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Questions and Answers

What is the highest layer of the atmosphere?

  • Stratosphere
  • Exosphere (correct)
  • Mesosphere
  • Thermosphere
  • Which layer of the atmosphere contains the ozone layer?

  • Thermosphere
  • Stratosphere (correct)
  • Mesosphere
  • Troposphere
  • What is the approximate thickness of the oceanic crust?

  • 5 to 10 km (correct)
  • 70 to 80 km
  • 15 to 25 km
  • 30 to 40 km
  • Which layer of the geosphere is primarily composed of silicate materials?

    <p>Crust</p> Signup and view all the answers

    What is the name of the boundary between the crust and the mantle?

    <p>Moho</p> Signup and view all the answers

    Which layer of the atmosphere is known for having the coldest temperatures?

    <p>Mesosphere</p> Signup and view all the answers

    Which layer of the mantle is known as the lithosphere?

    <p>Uppermost mantle</p> Signup and view all the answers

    Which layer of the atmosphere is characterized by charged particles?

    <p>Thermosphere</p> Signup and view all the answers

    Which organism is classified under the biosphere?

    <p>Bacteria</p> Signup and view all the answers

    What is the layer of the atmosphere where weather occurs?

    <p>Troposphere</p> Signup and view all the answers

    What type of crust is found under the oceans?

    <p>Oceanic crust</p> Signup and view all the answers

    What concept did Vladimir Vernadsky popularize?

    <p>Noosphere</p> Signup and view all the answers

    Which process describes how water moves into the atmosphere?

    <p>Evaporation</p> Signup and view all the answers

    What percentage of all the water on Earth is made up of salty water?

    <p>97.5%</p> Signup and view all the answers

    Which scientist is referred to as the father of modern geology?

    <p>James Hutton</p> Signup and view all the answers

    How did Alexander von Humboldt contribute to Earth System Science?

    <p>By observing the impact of atmospheric factors on life distribution</p> Signup and view all the answers

    Which layer of the Earth is described as the innermost layer of Earth’s interior?

    <p>Inner core</p> Signup and view all the answers

    What principle did James Lovelock propose?

    <p>Gaia hypothesis</p> Signup and view all the answers

    What effect does water running through fertile soil have?

    <p>It enriches the soil with minerals.</p> Signup and view all the answers

    What does the concept of uniformitarianism imply according to James Hutton?

    <p>The processes shaping Earth in the past are similar to those today</p> Signup and view all the answers

    Which of the following gases is the most abundant in the atmosphere?

    <p>Nitrogen</p> Signup and view all the answers

    What aspect of Earth did Vladimir Vernadsky theorize would lead to sustainability?

    <p>The development of human reason</p> Signup and view all the answers

    Which scientist studied the transfer of heat around Earth and its effect on organisms?

    <p>Alexander von Humboldt</p> Signup and view all the answers

    What process did James Hutton conceptualize that transforms rock and soil?

    <p>Weathering</p> Signup and view all the answers

    What occurs in the asthenosphere that allows the lithospheric plates to move?

    <p>It is hot enough to flow and minimally melt.</p> Signup and view all the answers

    Which of the following best describes the composition of the core of the Earth?

    <p>Primarily composed of iron and nickel.</p> Signup and view all the answers

    What percentage of Earth's hydrosphere is composed of saltwater?

    <p>97.5%</p> Signup and view all the answers

    What do the living organisms in the biosphere primarily interact with?

    <p>Each other and the physical environment.</p> Signup and view all the answers

    Which of these is NOT a component of the four primary subsystems of Earth?

    <p>Cryosphere</p> Signup and view all the answers

    Which biome is characterized by its ability to support various plant and animal life?

    <p>Desert</p> Signup and view all the answers

    What is the primary characteristic that allows the lower mantle to remain solid?

    <p>It experiences immense pressure.</p> Signup and view all the answers

    Which of the following best defines a biome?

    <p>A community of living organisms interacting with each other and their environment.</p> Signup and view all the answers

    What is the primary role of the oceans in relation to climate?

    <p>They act as climate regulators by absorbing sunlight.</p> Signup and view all the answers

    How does soil moisture influence surface temperature?

    <p>Through the energy required for evaporation.</p> Signup and view all the answers

    What aspect of the geosphere primarily impacts climate?

    <p>The crust and its topography.</p> Signup and view all the answers

    What effect does a mountain range have on local weather patterns?

    <p>It blocks the path of low altitude clouds.</p> Signup and view all the answers

    How do plants and trees influence atmospheric carbon dioxide levels?

    <p>They absorb carbon dioxide and release oxygen.</p> Signup and view all the answers

    What happens when a large number of plants and trees are removed from an area?

    <p>The levels of free carbon dioxide increase.</p> Signup and view all the answers

    What is the role of the hydrosphere in the climate system?

    <p>It stores and releases large quantities of energy.</p> Signup and view all the answers

    What effect do dust particles in the atmosphere have on climate?

    <p>They block sunlight and can alter cooling.</p> Signup and view all the answers

    What is the primary product of photosynthesis in plants and photosynthetic bacteria?

    <p>Glucose</p> Signup and view all the answers

    Through which processes does carbon from the land reach the oceans?

    <p>Rivers and streams</p> Signup and view all the answers

    Which of the following is a unique characteristic of Earth related to the oxygen cycle?

    <p>Presence of free molecular oxygen</p> Signup and view all the answers

    What happens to oxygen during aerobic respiration?

    <p>It is converted into carbon dioxide</p> Signup and view all the answers

    Which organisms are known to perform photosynthesis and produce oxygen gas?

    <p>Plants and algae</p> Signup and view all the answers

    What is a significant pathway through which carbon is converted into fossil fuels?

    <p>Burial of dead organisms in specific environments</p> Signup and view all the answers

    What role do biogeochemical cycles play in Earth's ecosystems?

    <p>They transfer elements and compounds between the four spheres</p> Signup and view all the answers

    Which process is primarily responsible for the consumption of oxygen in ecosystems?

    <p>Aerobic respiration</p> Signup and view all the answers

    Study Notes

    Unit 3: Introduction to Earth System Science

    • Unit 3 of the study guide covers Introduction to Earth System Science, with lessons on Earth System Science, The Four Subsystems of Earth, and Earth's Climate System along with the Biogeochemical Cycles.
    • The study guide also includes a list of essential questions along with a review section for each lesson.

    Lesson 3.1: Introduction to Earth System Science

    • The objective of lesson 3.1 is to show the contributions of notable scientists to the understanding of Earth's systems and cite the reasons why studying Earth's systems is relevant to society.
    • Warm-up activity involves calculation of carbon dioxide emissions using a carbon footprint calculator.
    • Scientists have built the foundations for understanding Earth systems.

    Lesson 3.2: The Four Subsystems of Earth

    • The objective of lesson 3.2 is to describe each major subsystem of Earth.
    • The subsystems of Earth are the atmosphere, geosphere, hydrosphere, and biosphere.
    • The atmosphere is made up of gases, the geosphere is comprised of soil, rocks, and minerals, the hydrosphere is made up of water, and the biosphere encompasses all living things on Earth.

    Lesson 3.3: Earth's Climate System

    • The objective of lesson 3.3 is for students to explain the interactions between Earth subsystems and external forces along with their impact on Earth's climate system.
    • Warm-up activity involves describing an assigned ecosystem and identifying components that belong to the major subsystems.

    Lesson 3.4: The Biogeochemical Cycles

    • The objective of lesson 3.4 is to identify biogeochemical processes and describe the movement of matter.
    • Earth's subsystems consist of compounds essential for life such as water, nitrogen, carbon, and oxygen.
    • Warm up activity for lesson 3.4 involves reviewing a video about the fall of a leaf.

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    Description

    Unit 3 explores the fundamentals of Earth System Science, detailing the four major subsystems: atmosphere, geosphere, hydrosphere, and biosphere. It emphasizes the contributions of scientists and the relevance of studying these systems to society. The unit also includes lessons on Earth's climate system and biogeochemical cycles.

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