Environmental Science Chapter 2 Quiz
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Environmental Science Chapter 2 Quiz

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@AdroitSamarium

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Questions and Answers

What is the environmental impact of forest clear-cutting?

Increased runoff and nutrient loss.

What are the four features of the scientific process?

  • Peer review (correct)
  • Curiosity (correct)
  • Skepticism (correct)
  • Reproducibility (correct)
  • What are the steps involved in the scientific process?

  • Formulate a hypothesis (correct)
  • Identify problem/question (correct)
  • Create a theory
  • Analyze data (correct)
  • The goals of science include developing scientific theories and laws.

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

    What does reliable science refer to?

    <p>Well-tested and widely accepted hypotheses.</p> Signup and view all the answers

    The natural greenhouse effect helps keep _____ temperatures moderate.

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

    According to the 2007 IPCC report, what was the very likely increase in temperature from 1906 to 2005?

    <p>0.74 C°</p> Signup and view all the answers

    What is the main cause of global warming according to the 2007 IPCC report?

    <p>Human activities adding carbon dioxide to the atmosphere.</p> Signup and view all the answers

    Scientific laws represent a _____-accepted pattern in data.

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

    Study Notes

    Hubbard Brook Experimental Forest

    • Investigates environmental impact of forest clear-cutting through controlled experiments.
    • Use of control and experimental groups to isolate variables.
    • Measurement of water and nutrient loss in both groups.
    • Clear-cutting resulted in a 30–40% increase in runoff.
    • Observed 6–8 times more nutrient loss in clear-cut areas, establishing cause-and-effect relationships.

    The Scientific Process

    • Defined as collecting data to develop theories, models, and laws about nature.
    • Steps include identifying a problem, gathering existing knowledge, and conducting experiments.
    • Process involves formulating testable hypotheses and making predictions.
    • Key features of the scientific process: curiosity, skepticism, peer review, and reproducibility.

    Steps in Scientific Inquiry

    • Identify problem or question of interest.
    • Conduct literature searches to understand existing knowledge.
    • Formulate a testable hypothesis based on gathered information.
    • Perform experiments to collect data and test predictions.
    • Analyze data for patterns and revise hypotheses as necessary.
    • Development leads to scientific theories and well-accepted laws.

    Goals and Limitations of Science

    • Aims to establish well-tested theories and reliable scientific laws.
    • Scientific certainty varies; some science remains tentative and may progress or regress in acceptance.
    • Limitations include observational bias, complexity of interactions, and challenges in mathematical modeling.

    Climate Change Insights

    • Focuses on the natural greenhouse effect that moderates atmospheric temperatures.
    • Key questions addressed:
      • Extent of warming over the past 50 years.
      • Human contributions to the increase in carbon dioxide levels.
      • Predictions for future warming and its potential effects.
    • According to the 2007 IPCC report:
      • Very likely a 0.74°C increase from 1906-2005.
      • Human activities identified as the main cause of global warming.
      • Likely future increase in Earth’s mean surface temperature by approximately 3°C.

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    Description

    Explore the core concepts of Chapter 2 from Environmental Science, focusing on science, matter, and energy. This quiz delves into the environmental impacts of forest clear-cutting and the methodologies of controlled experiments. Test your understanding of the Hubbard Brook Experimental Forest study.

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