State one environmental system and one social system.
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Syllabus Edition
First teaching 2024
First exams 2026
State one environmental system and one social system.
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Identify the type of system shown in the figure below:
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Define the term transformation in the context of environmental systems.
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State one example of a transformation that occurs in the hydrological cycle.
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In system diagrams, state what is represented using shapes with defined boundaries (such as a circle or rectangle).
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In system diagrams, state what is represented using arrows.
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Below is an example of a stable equilibrium.
Identify the name of this type of stable equilibrium.
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Below is an example of a stable equilibrium.
Identify the name of this type of stable equilibrium.
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When a population is exposed to a disease, some individuals will be more resistant to the disease than others. Those individuals who are more resistant to the disease will be more likely to survive and reproduce. This will lead to an increase in the proportion of resistant individuals in the population. As the proportion of resistant individuals in the population increases, the disease will have a harder time spreading. This is because there are fewer susceptible individuals for the disease to infect. This will lead to a decrease in the prevalence of the disease in the population.
Identify the type of feedback being demonstrated in this example.
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Define the term system.
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State two storages and two flows within the carbon cycle system.
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Explain how the Earth and the atmosphere surrounding it could be viewed as a closed system.
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Distinguish between transfers and transformations within the context of the hydrological cycle, providing examples for each.
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Distinguish between a holistic approach and a reductionist approach for studying systems.
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Explain how a community of trees in a tropical rainforest could be viewed as a system.
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Define the term model.
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Evaluate the usefulness of environmental models.
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Explain the term ecological tipping point.
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Explain the role of feedback loops in the dynamics of alternate stable states and the occurrence of tipping points between them.
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Complete the diagram to show how a positive feedback process involving melting sea ice may affect the rate of global warming.
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