Question 1

State one factor that can increase ecosystem resilience.

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Question 2

State two human activities that can trigger positive feedback loops in environmental systems.

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Question 3

Define the term negative feedback loop.

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Question 4

Define the term resilience in the context of environmental systems.

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Question 5

State one characteristic of a positive feedback loop.

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Question 6

State two characteristics of a resilient system.

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Question 7

Outline what is meant by albedo and state how it affects global temperature.

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Question 8

Outline one example of a negative feedback loop in a natural system.

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Question 9

Outline one example of a positive feedback loop related to climate change.

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Question 10

Explain the relationship between resilience and tipping points in environmental systems.

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Question 11

Outline how biodiversity can increase the resilience of an ecosystem.

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Question 12

Explain how negative feedback loops contribute to the stability of ecosystems.

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Question 13

Explain why positive feedback loops can lead to environmental instability.

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Question 14

Explain how negative feedback loops can increase ecosystem resilience.

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Question 15

Outline one way human activity can reduce the resilience of an ecosystem.

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Question 16

Compare positive and negative feedback loops.

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Question 17

Compare resilient and non-resilient ecosystems.

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Question 18

With reference to one named ecosystem, discuss how human activity has affected its resilience.

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Question 19

With reference to polar environments, explain how changes in albedo can create a positive feedback loop.

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Question 20

With reference to one example, discuss how feedback loops can influence ecosystem resilience.

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Topic 1.3: Equilibrium, Stability and Resilience Questions

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