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Using Figure 4 and your own knowledge, assess the view that low precipitation is the most important factor leading to the development of this landscape - AQA - A-Level Geography - Question 2 - 2020 - Paper 1
Question 2
Using Figure 4 and your own knowledge, assess the view that low precipitation is the most important factor leading to the development of this landscape. Figure 4 sh... show full transcript
Worked Solution & Example Answer:Using Figure 4 and your own knowledge, assess the view that low precipitation is the most important factor leading to the development of this landscape - AQA - A-Level Geography - Question 2 - 2020 - Paper 1
Step 1
Assess the impact of low precipitation
Answer
Low precipitation is often the primary driver of desert environments, leading to arid conditions that limit vegetation and water availability. In arid regions like central Iran, the lack of moisture halts the growth of lush plant life and alters the soil composition. Consequently, this dryness contributes to the formation of desert pavements by preventing soil erosion, thus allowing stony surfaces to dominate.
Step 2
Explore other contributing factors
Answer
While low precipitation is crucial, other factors also impact landscape development. These include weathering processes, erosion dynamics, and wind activity. For instance, strong winds can enhance the effect of low precipitation by transporting loose materials, shaping the terrain, and creating patterns in the sediment. Weathering processes help to break down rocks and minerals, influencing the physical characteristics of the landscape.
Step 3
Evaluate the interplay of factors
Answer
The interaction between low precipitation and other environmental forces creates specific desert characteristics. For example, even in low rainfall areas, periods of flooding can temporarily alter landscapes if they coincide with heavy rainfall events. This suggests that while low precipitation is foundational, it cannot solely account for the landscape’s complexity. The fact that temperature extremes and historical geological events play a role signifies a multifaceted relationship in the ecological balance.