Agriculture and Ecosystems Overview
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Questions and Answers

What percentage of crop grown areas are estimated to receive pesticides during production?

  • 50-70%
  • 90-100%
  • 70-90% (correct)
  • 30-50%

    • Pesticides have no effect on non-target species.

    False

    What is one negative environmental consequence of using fertilizers?

    Increased nitrate levels in rivers and ground waters

    Agricultural and animal wastes, if not utilized properly, may lead to __________ pollution.

    <p>ground and water</p> Signup and view all the answers

    Match the following agricultural practices with their environmental impacts:

    <p>Fertilizers = Increased nitrate levels in water Pesticides = Toxicity to non-target species Farm Wastes = Air pollution and GHG emissions Pest Resistance = Increased chemical doses required</p> Signup and view all the answers

    Which of the following is NOT one of the basic principles of organic production?

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

    One of the goals of organic production is to rely on nonrenewable resources.

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

    What is the purpose of the Organic Agriculture Act of 2010?

    <p>To promote organic agriculture and ensure environmentally friendly practices.</p> Signup and view all the answers

    The Organic Agriculture Act of 2010 is also known as Republic Act No. ______.

    <p>10068</p> Signup and view all the answers

    Match the following goals of organic production with their descriptions:

    <p>Enhance diversity = Increase biodiversity within the agricultural system Recycling wastes = Return nutrients to the soil and minimize waste Maintain soil fertility = Ensure long-term health of the soil Promote healthy soil use = Encourage sustainable practices in soil management</p> Signup and view all the answers

    What is a primary impact of human management on natural ecosystems?

    <p>Simplifies the ecosystem</p> Signup and view all the answers

    An ecosystem only consists of living components.

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

    Define 'resilience' in the context of ecosystems.

    <p>The ability to maintain or re-establish structure and behavior when disturbed.</p> Signup and view all the answers

    An ecosystem's ability to maintain productivity in the face of stress or disturbances is known as __________.

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

    Match the properties of an ecosystem with their descriptions:

    <p>Stability = Ability to maintain equilibrium despite disturbances Self-organization = Ability to re-establish itself through reinforcing interactions Diversity = Variety of species within an ecosystem Complexity = Interconnectedness of components in an ecosystem</p> Signup and view all the answers

    Which of the following is NOT a property of ecosystems?

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

    Humans are at the beginning of the food chain in an ecosystem.

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

    What does 'self-organization' in ecosystems refer to?

    <p>The ability of an ecosystem to maintain or re-establish itself through mutually reinforcing interactions.</p> Signup and view all the answers

    What is a significant cause of climate change mentioned?

    <p>Drainage of wetlands</p> Signup and view all the answers

    Global warming does not lead to increased natural disasters.

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

    What is the purpose of the Agriculture and Fisheries Modernization Act of 1997?

    <p>To modernize agriculture and fisheries sectors.</p> Signup and view all the answers

    The greenhouse effect is primarily caused by the emission of _______.

    <p>greenhouse gases</p> Signup and view all the answers

    Match the following negative environmental impacts with their causes:

    <p>Flood risk = Deforestation Land degradation = Overgrazing Melting glaciers = Global warming Mudflows = Poor land management</p> Signup and view all the answers

    Which of the following is a key principle of the agriculture policy?

    <p>Technological advancement in farming</p> Signup and view all the answers

    Antibiotics poorly administered can lead to antibiotic resistance in bacteria.

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

    What are two effects of climate change mentioned in the content?

    <p>Increased floods and droughts.</p> Signup and view all the answers

    What is the primary aim of the AFMA of 1997?

    <p>To enhance the profitability of the agriculture and fisheries sectors</p> Signup and view all the answers

    The AFMA of 1997 seeks to ensure the availability and adequacy of food supplies at all times.

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

    What does sustainable development promote in relation to agriculture and fisheries?

    <p>It promotes development that is compatible with the preservation of the ecosystem.</p> Signup and view all the answers

    AFMA aims to transition the sectors from a ___________-based to a technology-based industry.

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

    Which of the following is NOT a goal of the AFMA of 1997?

    <p>Ensuring strict regulation of food prices</p> Signup and view all the answers

    Rational use of resources involves adopting an irrational approach to public investment allocations.

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

    The AFMA of 1997 aims to enhance profits for small farmers and fisherfolk by ensuring equitable access to __________, resources, and services.

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

    Match the following objectives with their descriptions:

    <p>Food Security = Ensuring availability, adequacy, accessibility, and affordability of food supplies. Global Competitiveness = Enhancing competitiveness in domestic and foreign markets. Sustainable Development = Promoting development compatible with ecosystem preservation. Rational Use of Resources = Adopting a rational approach for efficient public investment allocations.</p> Signup and view all the answers

    What is one of the main purposes of the BS Agriculture Program?

    <p>To prepare professionals for the agricultural profession</p> Signup and view all the answers

    An agriculturist should only be concerned with plant production and ignore other organisms.

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

    What key skill is necessary for an agriculture graduate when analyzing data?

    <p>Interpreting technical and socio-economic data</p> Signup and view all the answers

    An agriculturist should be able to provide __________ advice in implementing agricultural development.

    <p>scientific, technical, and policy</p> Signup and view all the answers

    Which of the following is NOT a duty of an agriculture graduate?

    <p>Developing agricultural recipes</p> Signup and view all the answers

    Keeping abreast of developments in agricultural sciences is not important for agriculture professionals.

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

    Name one type of data that agriculture graduates are expected to analyze.

    <p>Technical data or socio-economic data</p> Signup and view all the answers

    Match the following responsibilities with their descriptions:

    <p>Managing resources = Using effective and efficient methods Providing policy advice = Guiding agricultural development Conducting resource inventory = Employing qualitative and quantitative tools Formulating strategic plans = Planning for agricultural development</p> Signup and view all the answers

    Study Notes

    Agriculture and the Ecosystem

    • Land serves as a living space and a source of sustenance, fuel, clothing, and shelter.
    • Land use is diverse, encompassing food production, housing, airports, factories, and recreation.
    • An ecosystem is a defined area on Earth with common structural features, maintained by both biotic and abiotic processes.

    Properties of an Ecosystem

    • Stability: An ecosystem's ability to maintain equilibrium despite disturbances (like storms or fires).
    • Resilience: An ecosystem's ability to re-establish structure and behavior after a disturbance.
    • Self-organization: An ecosystem's ability to maintain and re-establish itself through interactions.
    • Diversity: The number of species within an ecosystem.
    • Complexity: The number of components in an ecosystem and the nature of their interactions.
    • Efficiency/Productivity: The output per unit input in a system.
    • Ecological Efficiency: The conversion of food resources into biomass by organisms.

    Impacts of Agriculture on the Environment

    • Fertilizers: Increased use of nitrogen-based fertilizers leads to elevated nitrate levels in rivers and groundwater, potentially causing health hazards (especially in pregnant women) and eutrophication (depleted oxygen in water bodies).
    • Farm Chemicals: Increased use of pesticides and herbicides, which can be toxic to a wide range of organisms. Pesticide use can increase crop yield but may also lead to pest resistance.
    • Farm Wastes: Agricultural and animal waste contribute to environmental burdens.
    • Soil Erosion: The wearing away of soil by water or wind results in sedimentation, loss of fertility, and low crop yields.
    • Drainage: Increasing population pressure often leads to wetland drainage for agricultural use.
    • Global Warming: Global warming results in issues like floods, droughts, melting of glaciers and permafrost, deforestation, and increased risk of landslides.

    Modern Agricultural Practices and Techniques

    • Modern techniques have significantly enhanced agricultural production but have come at the cost of environmental consequences.
    • Global land use for food production is substantial (71% of the land area globally is habitable).

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    Agriculture and Ecosystem PDF

    Description

    Explore the vital relationship between agriculture and ecosystems through this quiz. Learn about land use diversity, properties of ecosystems like stability and resilience, and the importance of biodiversity. Test your understanding of these concepts fundamental to environmental science.

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