Chapter 1: Environmental Science and Sustainability
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Questions and Answers

How does the content suggest that human impacts on the environment are becoming more apparent?

  • The loss of natural habitat for animals, such as forests and wetlands, is increasing.
  • The number of cities and their increasing light output is noticeable from space.
  • Human activity has caused a significant impact on marine ecosystems.
  • All of the above (correct)
  • What does the United Nations define as sustainable development?

  • Development that prioritizes environmental conservation.
  • Development that emphasizes social equity above all else.
  • Development that meets present needs without harming future generations. (correct)
  • Development that focuses solely on economic growth.
  • The 3Es of sustainable development include which of the following elements?

  • Equity, Efficiency, Environment
  • People, Planet, Profit
  • Economy, Environment, Equity (correct)
  • Energy, Education, Ecology
  • What is used as an indicator to measure progress towards sustaining ocean ecosystems?

    <p>Marine pollution levels (B)</p> Signup and view all the answers

    Which sustainable development goal addresses the long-term changes in climate conditions?

    <p>Combating climate change (C)</p> Signup and view all the answers

    Ecological resilience refers to which of the following?

    <p>The overall functionality after disturbance. (C)</p> Signup and view all the answers

    What does 'recovery' in ecological resilience signify?

    <p>Returning to the original state after disturbance. (B)</p> Signup and view all the answers

    What is a crucial aspect of sustainability regarding natural resources?

    <p>Ensuring resources are available for future generations. (C)</p> Signup and view all the answers

    Which event exemplified the need for maintaining shoreline ecosystems for resilience?

    <p>Superstorm Sandy (B)</p> Signup and view all the answers

    What is the term used to describe the current epoch of Earth’s history influenced by human activity?

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

    What is a key factor in sustainability as mentioned in the content?

    <p>Ecological resilience (B)</p> Signup and view all the answers

    What process is described as the method through which scientific ideas are tested?

    <p>The scientific method (C)</p> Signup and view all the answers

    Which of the following best describes an emergent property?

    <p>A trait that develops from the interaction of various components within a system. (B)</p> Signup and view all the answers

    In which scenario is an accidental discovery likely to occur?

    <p>When examining unrelated phenomena (D)</p> Signup and view all the answers

    What role do ecosystem services play in human survival?

    <p>They provide essential resources like nutrients, water, and clean air. (D)</p> Signup and view all the answers

    What is a key element of Indigenous knowledge regarding environmental stewardship?

    <p>Taking care of the environment ensures it will take care of you. (A)</p> Signup and view all the answers

    What must be done for a scientific discovery to be accepted by the scientific community?

    <p>It must be methodically documented and reproducible (C)</p> Signup and view all the answers

    Which of the following statements about ecosystems is accurate?

    <p>Ecosystems consist of both living organisms and nonliving factors. (D)</p> Signup and view all the answers

    What is the purpose of the control in a controlled experiment?

    <p>To provide a baseline for comparison (C)</p> Signup and view all the answers

    In what way do humans impact the environment according to contemporary understanding?

    <p>Human overpopulation has significant consequences for ecosystems. (C)</p> Signup and view all the answers

    Which hypothesis did researchers support based on their controlled experiments regarding coral bleaching?

    <p>Increasing ocean temperature is the stressor causing coral bleaching. (B)</p> Signup and view all the answers

    What aspect of scientific inquiries is highlighted in the need for reproducibility?

    <p>Results should be replicable by other scientists. (A)</p> Signup and view all the answers

    What is science fundamentally based on?

    <p>Observation and empirical testing. (C)</p> Signup and view all the answers

    What aspect influences our decisions regarding environmental issues?

    <p>Values, beliefs, and social influences. (A)</p> Signup and view all the answers

    What kind of experiments would be designed to investigate a hypothesis?

    <p>Controlled experiments comparing manipulated and unmanipulated states (A)</p> Signup and view all the answers

    What is the primary characteristic that defines the Anthropocene Epoch?

    <p>It is marked by significant human impacts on the environment. (D)</p> Signup and view all the answers

    Which of the following best describes the 3Es of sustainable development?

    <p>Environment, economy, and equity. (C)</p> Signup and view all the answers

    In the context of the scientific method, which statement is true?

    <p>The process involves repeated trials to ensure the validity of the findings. (D)</p> Signup and view all the answers

    What is a major misconception about the scientific method?

    <p>Scientists develop their hypotheses only after obtaining results. (A)</p> Signup and view all the answers

    Which of the following best describes wetlands in environmental context?

    <p>Natural environments that act as filters for pollutants in water. (B)</p> Signup and view all the answers

    What role do energy companies play in environmental sustainability?

    <p>They are essential in developing renewable resources and technologies. (B)</p> Signup and view all the answers

    How do municipal wastewater treatment plants contribute to environmental health?

    <p>They help in recycling and treating wastewater to reduce pollution. (A)</p> Signup and view all the answers

    Which aspect is often overlooked in discussions about sustainable development?

    <p>The potential negative impacts of technological advancements. (B)</p> Signup and view all the answers

    A scientist is researching the effects of ocean acidification on coral bleaching. They conduct an experiment using two tanks, one with normal ocean acidity and the other with higher acidity. The scientist observes that the corals in the tank with higher acidity bleach more quickly than those in the normal acidity tank. How does this experiment relate to the concept of models in science?

    <p>The experiment uses the tanks as models to simulate the effects of ocean acidification on corals in the real world, allowing the scientist to make observations and draw conclusions without directly studying the ocean. (D)</p> Signup and view all the answers

    Which of the following situations is MOST likely to be influenced by misinformation?

    <p>A politician arguing for a policy based on their personal beliefs rather than scientific evidence. (C)</p> Signup and view all the answers

    A group of researchers studying air pollution in a city notices that the levels of certain pollutants are consistently higher on weekdays than on weekends. This observation suggests that the higher levels of pollutants on weekdays are likely due to:

    <p>A combination of factors, including human activities that are more prevalent during the week. (B)</p> Signup and view all the answers

    A public agency is attempting to reduce the amount of plastic waste generated in a community. They implement a policy that charges a fee for disposable plastic bags at grocery stores. This strategy is an example of:

    <p>Using trade-offs to influence people's decisions by making reusable bags more appealing. (B)</p> Signup and view all the answers

    A scientist is conducting a study to determine the effectiveness of a new pesticide in controlling crop pests. They observe a significant reduction in pest populations in the experimental plots treated with the pesticide. However, they also notice a decline in the populations of beneficial insects, such as pollinators. What is the most likely reason for the decline in beneficial insect populations?

    <p>The pesticide is a broad-spectrum insecticide, which means it affects a wide range of insects, including beneficial ones. (D)</p> Signup and view all the answers

    A researcher is studying the effects of climate change on coral reefs. They notice that over the past decade, the average water temperature in the area of study has increased by 1.5 degrees Celsius. During this time, the coral reefs have experienced significant bleaching events. How does this data support the claim that climate change is influencing coral reef health?

    <p>The increase in water temperature is consistent with the expected effects of climate change, and the occurrence of coral bleaching supports the hypothesis that warming waters are a contributing factor to coral decline. (B)</p> Signup and view all the answers

    A group of scientists are developing a model to simulate the spread of a new infectious disease. What is the primary purpose of this model?

    <p>To understand the factors that influence the spread of the disease and make predictions about its potential impact. (A)</p> Signup and view all the answers

    A group of students is debating the use of genetically modified (GM) crops. Some students argue that GM crops can increase food production and reduce the need for pesticides, while others argue that the potential risks of GM crops, such as unintended environmental impacts, outweigh the benefits. This debate highlights the importance of considering:

    <p>A balanced perspective that considers both the potential benefits and risks associated with GM crops, along with the values and preferences of different stakeholders. (D)</p> Signup and view all the answers

    Flashcards

    Sustainability

    Meeting present needs without compromising future generations' ability to meet theirs.

    Ecological Resilience

    The ability of an ecosystem to recover from damage.

    Scientific Method

    A process for asking questions and testing ideas in science.

    Hypothesis

    A proposed explanation for a scientific question that can be tested.

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    Controlled Experiment

    A research method where one variable is manipulated to test its effect.

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    Accidental Discovery

    Finding something unexpected while researching a different topic.

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    Coral Bleaching

    A phenomenon caused by stress factors like temperature increase, leading to coral loss of color.

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    Evidence Gathering

    Collecting data to support or refute a hypothesis in scientific research.

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    Environment

    The collection of systems comprising all living and nonliving things on Earth.

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    Ecosystem

    A system made up of interacting components that sustain life, like a coral reef.

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    Emergent Property

    A characteristic that arises from the interaction of various components in a system.

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    Ecosystem Services

    Natural resources provided by ecosystems that support human survival, like oxygen and water.

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    Anthropocene

    Current epoch of Earth's history marked by significant human impact on the environment.

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    Nutrient Cycling

    The process by which nutrients are recycled and reused in ecosystems.

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    Indigenous Knowledge

    Traditional understanding of the environment, emphasizing a reciprocal relationship with nature.

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    Environmental Justice

    The equitable treatment of all people in relation to environmental policies and practices.

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    Sustainable Development

    Development that meets present needs without compromising future generations.

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    3Es of Sustainability

    Environmental, economic, and equity effects considered in sustainability.

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    Sustainable Development Goals (SDGs)

    17 goals defined by the UN to promote sustainability globally.

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    Resistance in Ecology

    The ability to avoid changes when disturbed.

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    Recovery in Ecology

    The process of returning to original state after disturbance.

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    Indicators of Progress

    Specific measures used to track sustainability efforts.

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    Climate Change Impacts

    Long-term changes in temperature and precipitation due to human action.

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    Ocean Acidity

    The measure of how acidic or basic ocean water is, influenced by CO2 levels.

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    Models in Science

    Simplified representations of complex processes used to simulate real-world phenomena.

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    Scientific Fraud

    Deliberate deception by presenting false findings in research.

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    Pseudoscience

    Claims that are not based on the scientific method and lack proper evidence.

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    Misinformation

    False or incorrect information that can mislead people intentionally or unintentionally.

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    Trade-Offs

    Consideration of pros and cons when deciding between alternatives.

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    Incentives

    Motivations or reasons that influence decisions based on costs and benefits.

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    Human Impact on Environment

    The effects of human activities like urbanization and agriculture on ecosystems.

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    Terrestrial Habitat Loss

    The destruction of natural habitats due to human expansion.

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    Ocean Impact

    Negative effects on marine ecosystems from pollution and resource extraction.

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    Natural Resource Management

    The process of using natural resources without causing long-term damage.

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    Sustainable Practices

    Methods such as using renewable energy and responsible harvesting.

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    Cultural Significance of Resources

    The importance of natural resources to indigenous cultures and lifestyles.

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    Anthropocene Epoch

    A current era marked by significant human impact on the Earth.

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    3Es of Sustainable Development

    The three principles: environment, economy, and equity.

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    Hypothesis Development

    Creating a testable prediction based on observations.

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    Municipal Wastewater Treatment

    Processes to manage and purify city wastewater.

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    Wetlands

    Areas that naturally purify water and support biodiversity.

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    Energy Companies

    Businesses that produce or supply energy resources.

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    Agricultural Fertilizers

    Substances added to soil to enhance crop growth.

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    Study Notes

    Chapter 1: Environmental Science and Sustainability

    • Environmental Science and Sustainability: This chapter introduces the field of environmental science, focusing on the concept of sustainability.
    • Chapter 1 Outline: The chapter is structured around key topics, including the definition of environment and ecosystems, sustainability, environmental justice, science, challenges to good science, and factors influencing environmental decisions.
    • Chapter Objectives: To understand and describe how humans impact the environment; summarize the scientific method; explain various methods of observation and testing; and recognize the role of values in responding to environmental problems.

    1.1 What is the Environment, and What is an Ecosystem?

    • Environment: A collection of systems encompassing all living and nonliving things on Earth essential for sustaining life.
    • System: A set of interacting components that generate predictable patterns over time, like a household. This principle of emergent properties highlights the combined effect being greater than simply summing the parts.
    • Ecosystem: A natural system comprised of interacting living and nonliving elements, such as plants, animals, soil, water, and minerals. Coral reefs are examples of ecosystems. The prefix "eco" derives from the Greek word "oikos" meaning household.
    • Ecosystem Services: The myriad of benefits humans receive from natural ecosystems, such as clean air and water, and food. Forests provide ecosystem services, including providing oxygen, water, and energy (and breaking down waste).

    1.2 What is Sustainability?

    • Sustainability: Managing natural resources without diminishing Earth's capacity to provide them in the future. This approach seeks to meet the needs of the present without compromising the future.
    • Managing Natural Resources: Using resources, like fish populations, responsibly in a manner that supports future generations.
    • Indigenous Knowledge: Acknowledging traditional knowledge systems and their understanding of sustainability for guidance about protecting ecosystems, such as the native people's protection of Pacific salmon.
    • Sustainable Practices: Examples include less-polluting energy sources (e.g., solar power) and managed harvesting of natural resources, such as fish.

    1.3 What is Environmental Justice?

    • Environmental Justice: A key part of sustainability, this examines the disproportionate negative impacts of environmental problems on marginalized communities.
    • Goal: This approach seeks fairer distribution of environmental burdens and benefits for all populations.

    1.4 What is Science?

    • Science as Inquiry: A process of asking and answering questions about the natural world using evidence-based methods.
    • Scientific Method: A systematic process involving observation, hypothesis formation, experimental testing, data evaluation, and potential revision of hypotheses.
    • Controlled Experiments: Experiments comparing two situations. In manipulating one situation, you can observe how the specific change (manipulated variable) affects the result. A key aspect is the control, a situation that is not manipulated to serve as a benchmark for comparison.

    1.5 What Are Challenges to Good Science?

    • Evaluating Sources: Assessing the integrity of information sources is crucial.
    • Fraud: Deceptively presenting inaccurate findings.
    • Pseudoscience: Claims that lack scientific rigor. This differs from fraud, as it may not be intentionally deceitful but neglects the proper scientific method.

    1.6 What Shapes Our Decisions on the Environment?

    • Sustainability Considerations: Decisions extend beyond scientific understanding to include personal and societal values.
    • Values in Decision-Making: Personal values guide our choices and preferences regarding the environment.
    • Examples: Personal choices affecting environmental impact, for example, choosing if you will bike to school or ride in a car.

    Trade-offs and Incentives

    • Trade-offs: Weighing the pros and cons or benefits and costs of different behaviors or decisions.
    • Cost-Benefit Analyses: Public agencies and businesses may use communication strategies and economic analysis to alter decisions based on cost and benefit considerations.
    • Incentives: Positive and negative motivations that encourage or discourage certain behaviors. For example: free bus rides encourage campus transportation; expensive parking discourages car use.

    Making Sense of Our Environmental Effects

    • Ecological Footprints: Analyzing personal and national-level impact on the environment, estimating the resources consumed.
    • Carbon Footprints: Measuring greenhouse gas emissions related to lifestyles. Analyzing and understanding individual, local, and global environmental impacts can help you understand your place within these larger systems.
    • Units of Measurement: Global hectares (gha) provides a standard way to measure land use in support of individual or national lifestyles.

    Ecological Resilience

    • Ecosystem Recovery: Understanding how well systems recover from disturbances and maintain overall health is essential for sustainable ecosystems.
    • Resistance and Recovery: Recognizing that resistance to change and swift recovery processes help ecosystems maintain overall health and functionality. Coastal cities are examples of ecosystems that show resilience after being subjected to disturbances.

    Sustainable Development Goals

    • UN Goals: The UN created 17 global sustainable development goals addressing environmental, economic, and social aspects of human impact. Specific indicators are used to measure progress over time. Example: Marine pollution levels can assess sustainability efforts.

    Additional Points (from specific questions)

    • Ecosystem Services Example: Wetlands naturally purify water (Question 1)
    • Anthropocene Epoch: Marked by significant human impacts on Earth (Question 2).
    • 3Es of Sustainable Development: Environment, economy, and equity (Question 3).
    • Scientific Method: A formal process of inquiry (Question 5).

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    Description

    This quiz covers the fundamentals of Environmental Science and Sustainability, introducing key concepts like ecosystems, sustainability, and environmental justice. It is designed to assess your understanding of how human actions influence the environment and the scientific methods used to study these impacts.

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