AQA A Level · Geography 7037

Water and carbon cycles as natural systems: Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Water and carbon cycles as natural systems.

10 questions21 marksFree, no account

Question 1

1 mark

In physical geography, how is a closed system characterized?

Question 2

1 mark

In a drainage basin system, which of the following scenarios would most likely lead to the system entering a positive feedback loop involving soil moisture and vegetation?

Question 3

1 mark

Consider a drainage basin system where the water balance is calculated. If the relationship is expressed as \(P = Q + E \pm \Delta S\), what does a significant negative value for \(\Delta S\) typically indicate over a specific time period?

Question 4

1 mark

Which of the following describes a negative feedback loop within a natural system?

Question 5

1 mark

The concept of dynamic equilibrium in the global water cycle suggests that:

Question 6

2 marks

Define the concept of dynamic equilibrium as it applies to a natural system like the water cycle.

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Question 7

3 marks

Compare open systems and closed systems by identifying one key difference in how they exchange matter with their environment.

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Question 8

2 marks

In the context of geographical systems, define the term transfer (or flow) and provide one specific example from the carbon cycle.

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Question 9

4 marks

The concept of dynamic equilibrium is central to understanding natural systems.

(a) Describe what is meant by 'dynamic equilibrium' within the water cycle.
(b) Explain how a system in dynamic equilibrium might respond to an input change, such as an increase in precipitation, to maintain its overall stability.

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Question 10

5 marks

Analyze the relationship between positive and negative feedback loops in the regulation of the carbon cycle.

(a) Explain how a negative feedback mechanism can act as a regulator to maintain the balance of carbon in the atmosphere.
(b) Contrast this with a positive feedback loop, describing how it can lead to further instability in the global climate system when temperatures rise.

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