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What is EVS an abbreviation for?
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EVS stands for Environmental Systems and Societies.
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What is the main focus of EVS?
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The main focus of EVS is understanding the complex interactions between ecosystems, societies, and the environment.
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Define the term 'ecosystem'.
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An ecosystem is a community of living organisms interacting with each other and their physical environment.
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What are biotic components of an ecosystem?
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Biotic components are the living parts of an ecosystem, such as plants, animals, and microorganisms.
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What are abiotic components of an ecosystem?
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Abiotic components are the non-living parts of an ecosystem, including sunlight, water, soil, and temperature.
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What is biodiversity?
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Biodiversity refers to the variety of life forms within a particular ecosystem or the entire planet.
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Why is biodiversity important to ecosystems?
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Biodiversity is important because it helps maintain ecosystem balance and resilience, providing resources and services essential for survival.
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What is the greenhouse effect?
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The greenhouse effect is the process by which certain gases (greenhouse gases) trap heat in Earth's atmosphere, warming the planet.
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Name three greenhouse gases.
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Three greenhouse gases are carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).
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What is sustainability in environmental science?
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Sustainability refers to meeting the needs of the present without compromising the ability of future generations to meet their own needs.
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What are the three pillars of sustainability?
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The three pillars of sustainability are environmental, economic, and social sustainability.
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Define 'ecological footprint'.
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An ecological footprint measures the environmental impact of an individual or population, expressed as the amount of land required to sustain their use of natural resources.
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What is renewable energy?
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Renewable energy comes from sources that are naturally replenished, such as solar, wind, and hydro power.
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What is deforestation and its major effect?
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Deforestation is the clearing of forests for non-forest use, and it contributes to climate change and loss of biodiversity.
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Define 'pollution'.
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Pollution is the introduction of harmful substances or products into the environment, causing adverse effects.
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What is an ecological niche?
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An ecological niche is the role and position a species has in its environment, including all interactions with biotic and abiotic factors.
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What is carrying capacity?
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Carrying capacity is the maximum number of individuals of a species that an environment can support sustainably.
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Explain the concept of 'food chain'.
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A food chain is a linear sequence of organisms where each is consumed by the next member in the chain, demonstrating energy flow.
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What is the difference between a 'food chain' and a 'food web'?
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A food chain is a singular sequence of energy flow, whereas a food web consists of multiple interconnected food chains in an ecosystem.
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What role do decomposers play in an ecosystem?
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Decomposers break down dead material and waste, recycling nutrients back into the ecosystem for other organisms to use.
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